Bulls’ Robin Lopez

Bulls center Robin Lopez dunks in the first quarter against the Pelicans on Feb. 6, 2019, at the United Center.

Bulls center Robin Lopez shoots over Raptors center Jonas Valanciunas during the first half on Nov. 17, 2018, at the United Center.

Bulls center Robin Lopez blocks a shot by Kings forward Marvin Bagley III during the first half on Dec. 10, 2018, at the United Center.

Magic guard D.J. Augustin drives past Bulls center Robin Lopez during the second half Jan. 2, 2019, at the United Center.

Bulls center Robin Lopez has his shot blocked in the first half against the Magic on Dec. 21, 2018, at the United Center.

Bulls center Robin Lopez reacts after being called for a foul on Raptors forward Serge Ibaka on Nov. 17, 2018, at the United Center.

Bulls center Robin Lopez looks up during the first half of their game against the Hornets at the United Center on Wednesday, Oct. 24, 2018.

Bulls center Robin Lopez stands before the start of a game against the Hornets at the United Center on Wednesday, Oct. 24, 2018.

Bulls center Robin Lopez argues with a referee in the second half of the Bulls home opener against against the Pistons at the United Center on Saturday, Oct. 20, 2018.

Bulls center Robin Lopez (42) has his wingspan measured during media day Monday, Sept. 24, 2018, at the Advocate Center.

Bulls center Robin Lopez jokes with Benny the Bull during media day Monday, Sept. 24, 2018, at the Advocate Center.

Bulls center Robin Lopez (42) relaxes on the floor in the second half of a game against the Pistons at the United Center on Wednesday, April 11, 2018.

Bulls center Robin Lopez reacts after receiving two technical fouls and being ejected from a game against the Heat during the second half, Thursday, March 29, 2018, in Miami.

Bulls center Robin Lopez (42) reacts after receiving two technical fouls and being ejected from a game against the Heat during the second half Thursday, March 29, 2018, in Miami.

Bulls center Robin Lopez and Pierre, the Pelicans mascot, dance during the second half of a game between the Pistons and the Bulls, Saturday, March 24, 2018, in Detroit. Various mascots from around the league were present to celebrate the birthday of Hooper, the Pistons mascot.

Bulls center Robin Lopez (42) celebrates after a basket against the Grizzlies in the first half Thursday, March 15, 2018, in Memphis, Tenn.

Bulls center Robin Lopez chats with referee Justin Van Duyne (64) during the second half against the Grizzlies at the United Center on Wednesday, March 7, 2018.

Bulls center Robin Lopez shows off his T-shirt during the first half against the Grizzlies at the United Center on Wednesday, March 7, 2018.

Bulls center Robin Lopez talks to a referee during the second half against the Celtics at the United Center on Monday, Mar. 5, 2018.

Bulls forward Bobby Portis (5) is consoled by center Robin Lopez after a loss to the 76ers at the United Center on Thursday, Feb. 22, 2018.

Bulls center Robin Lopez (42) is held back by Magic forward Evan Fournier (10) and center Bismack Biyombo (11) during the first half at the United Center on Monday Feb. 12, 2018.

Timberwolves guard Jimmy Butler hugs former teammate Bulls center Robin Lopez before tipoff at the United Center on Friday, Feb. 9, 2018, in Chicago.

Jimmy Butler and Robin Lopez greet each other before the start of the game at the United Center on February 9, 2018.

Timberwolves forward Taj Gibson defends Bulls center Robin Lopez in the third quarter.

Timberwolves forward Taj Gibson moves toward the basket as Bulls center Robin Lopez defends in the first quarter.

Bulls center Robin Lopez leaves the court after being ejected from the game when he received two technical fouls during the second quarter against the Kings on Monday, Feb. 5, 2018, in Sacramento, Calif.

Bulls center Robin Lopez, right, shoots over Kings center Willie Cauley-Stein during the first quarter on Monday, Feb. 5, 2018, in Sacramento, Calif.

Bulls center Robin Lopez, right, shoots as Clippers forward Montrezl Harrell defends during the second half Saturday, Feb. 3, 2018, in Los Angeles.

Clippers forward Montrezl Harrell, left, shoots as Bulls center Robin Lopez defends during the first half Saturday, Feb. 3, 2018, in Los Angeles.

Bulls center Robin Lopez (42) in the first half Sunday, Jan. 28, 2018 at the United Center.

Bulls center Robin Lopez (42) wears a party hat for Benny the Bull’s birthday before the game Sunday, Jan. 28, 2018 at the United Center.

Brothers Brook Lopez of the Lakers and Robin Lopez of the Bulls battle for a rebound at the United Center on Jan. 26, 2018.

Bulls center Robin Lopez (42) in action during a game against the 76ers, Wednesday, Jan. 24, 2018, in Philadelphia.

Bulls center Robin Lopez (42) dunks in the second half against the Pelicans in New Orleans, Monday, Jan. 22, 2018.

Bulls center Robin Lopez dunks during the first half against the Atlanta Hawks on Jan. 20, 2018.

Bulls center Robin Lopez (42) scores against the Hawks on Jan. 20, 2018.

Warriors center JaVale McGee (1) and guard Stephen Curry (30) go up for a rebound against Bulls center Robin Lopez (42) during the first half at the United Center on Wednesday, Jan. 17, 2018.

Bulls center Robin Lopez celebrates his dunk in the second overtime period against the Knicks at Madison Square Garden in New York on Jan. 10, 2018.

Bulls center Robin Lopez (42) leaves the court after a game against the Rockets at the United Center on Monday, Jan. 8, 2018.

Bulls center Robin Lopez (42) reacts after making a 3-pointer against the Trail Blazers during the second half, Monday, Jan. 1, 2018.

Bulls center Robin Lopez reacts with a likeness of him drawn by the Wizards mascot, Sunday, Dec. 31, 2017, in Washington.

Bulls center Robin Lopez drives to the basket against the Pacers during the second half, Friday, Dec. 29, 2017.

Bulls center Robin Lopez (L) maneuvers around Bucks center Thon Maker.

The Bulls’ Robin Lopez battles for the ball.

Bulls center Robin Lopez (R) wins the opening tipoff against Magic center Nikola Vucevic.

Bulls center Robin Lopez (42) battles 76ers forward Amir Johnson (5) for a loose ball during the first half at the United Center on Dec. 18, 2017.

Bulls center Robin Lopez (L) shoots his own rebound on Bucks guard Gary Payton II (C) and Bucks center John Henson (R).

Bulls’ Robin Lopez puts up a shot past Jazz’ Derrick Favors on December 13, 2017.

Bulls center Robin Lopez (R) and Jazz center Rudy Gobert (L) battle for position under the basket.

Bulls forward Nikola Mirotic and center Robin Lopez (42) celebrate in the first half against the Jazz at the United Center on December 13, 2017.

Bulls center Robin Lopez (42) handles the ball next to Knicks forward Lance Thomas (42) during the first quarter on Dec. 9, 2017 at the United Center.

Bulls center Robin Lopez (42) hugs Knicks center Kyle O’Quinn (9) before the Bulls played the Knicks on Dec. 9, 2017 at the United Center.

Bulls center Robin Lopez looks to pass the ball against the Knicks during the first half on Dec. 9, 2017.

Bulls center Robin Lopez pulls down an offensive rebound against the Hornets on Dec. 8, 2017 in Charlotte.

Bulls center Robin Lopez (42) gets tangled up with Pacers center Myles Turner (33) during the second half in Indianapolis, Wednesday, Dec. 6, 2017.

Bulls center Robin Lopez (42) smiles in the first half of a game against the Nuggets on Thursday, Nov. 30, 2017, in Denver.

Bulls center Robin Lopez (42) argues with a referee late in the second half against the Suns at the United Center on Tuesday, Nov. 28, 2017.

Bulls center Robin Lopez, right, sits on the bench next to Lauri Markkanen, left, and Kris Dunn during the second half against the Warriors in Oakland, Calif., Friday, Nov. 24, 2017.

Bulls center Robin Lopez during the second half of an game Tuesday, Nov. 21, 2017, in Los Angeles.

Lauri Markkanen pushes Robin Lopez away from referee Bill Spooner during the second half oagainst the Lakers at the Staples Center in Los Angeles on Nov. 21, 2017.

Bulls center Robin Lopez is guarded by the Hornets’ Cody Zeller during the first half at United Center on Friday, Nov. 17, 2017.

Robin Lopez reacts to a foul call against him in the third quarter against the Hornets at the United Center on Nov. 17, 2017.

The Hornets’ Frank Kaminsky tries to shoot against Robin Lopez at the United Center on Nov. 17, 2017.

Robin Lopez argues with a referee in overtime of a game against the Pelicans at the United Center in Chicago on Nov. 4, 2017.

Robin Lopez reacts after missing the final shot of regulation in the second half against the Pelicans at the United Center on Nov. 4, 2017.

Robin Lopez watches the action from the bench in the first half against the Hawks at the United Center on Oct. 26, 2017.

The Spurs’ Patty Mills attempts a shot over Robin Lopez in the first quarter at the United Center on Oct. 21, 2017.

Robin Lopez is sandwiched between the Spurs’ LaMarcus Aldridge and Joffrey Lauvergne during the first half at the United Center on Oct. 21, 2017.

Robin Lopez during a game against the Mavericks’ on Oct. 4, 2017.

Bobby Portis, Robin Lopez and Lauri Markkanen at Bulls Media Day on Sept. 25, 2017.

The Celtics’ Al Horford and Jae Crowder complete with Bulls center Robin Lopez for a rebound during the third quarter of Game 5 of the Eastern Conference quarterfinals at TD Garden on April 26, 2017, in Boston.

Celtics forward Amir Johnson fouls Bulls center Robin Lopez during the first quarter of a first-round NBA playoff game in Boston on Tuesday, April 18, 2017.

Nets center Brook Lopez guards his twin brother Bulls center Robin Lopez during the second half Saturday, April 8, 2017, in New York.

Bulls center Robin Lopez gestures after dunking during the second half against the Nets on Saturday, April 8, 2017, in New York.

Bulls center Robin Lopez takes a shot over Cavaliers forward Channing Frye during the first half at the United Center on Thursday, March 30, 2017.

Bulls center Robin Lopez blocks a shot by Magic guard Elfrid Payton during the second half in Orlando, Fla., on Wednesday, March 8, 2017.

Robin Lopez reacts after a call during the second half against the Clippers at the United Center on Saturday, March 4, 2017.

Robin Lopez reacts after missing a shot during the second half against the Suns on Friday, Feb. 24, 2017, at the United Center.

The Cavaliers’ Iman Shumpert drives against Robin Lopez in the first half Saturday, Feb. 25, 2017, in Cleveland.

Robin Lopez shoots from the floor while on top of the Warriors’ JaVale McGee during the second half on Feb. 8, 2017.

Robin Lopez rebounds in front of the 76ers’ Richaun Holmes at the United Center on Jan. 29, 2017.

Robin Lopez makes his way past the Magic’s Serge Ibaka during the second half on Jan. 24, 2017.

Robin Lopez stands during free throws in the game against the Hawks at Philips Arena on Jan. 20, 2017.

Mavericks forward Dirk Nowitzki guards Robin Lopez during the first half at the United Center on Tuesday, Jan. 17, 2017.

Robin Lopez reacts during the second half against the Wizards on Tuesday, Jan. 10, 2017, in Washington.

Robin Lopez late in the second half of the game against the Thunder at the United Center on Monday, Jan. 9, 2017.

Robin Lopez fouls Raptors guard DeMar DeRozan during the second half at the United Center on Saturday, Jan. 7, 2017.

Robin Lopez points to a teammate after making a basket against the Raptors during the second half at the United Center on Saturday, Jan. 7, 2017.

Robin Lopez fouls the Cavaliers’ Iman Shumpert in the first half on Jan. 4, 2017.

The Nets’ center Brook Lopez drives past Robin Lopez in the second half at the United Center on Dec. 28, 2016.

Robin Lopez goes up for a basket over the Pistons’ Marcus Morris and Tobias Harris during the first half at the United Center on Dec. 19, 2016.

Robin Lopez stretches before playing the Pistons at the United Center on Dec. 19, 2016.

Robin Lopez passes the ball after falling during the first half against the Bucks on Dec. 15, 2016.

Robin Lopez blocks the shot of the Timberwolves’ Karl-Anthony Towns during the second half on Dec. 13, 2016.

Robin Lopez shoots over the Spurs’ LaMarcus Aldridge during the first half on Dec. 25, 2016.

Robin Lopez, left, looks on with Dwyane Wade and Jimmy Butler during the first half against the 76ers on Nov. 25, 2016.

Robin Lopez readies with Nikola Mirotic before a game against the Lakers on Nov. 20, 2016.

Robin Lopez loses the ball as he is fouled by the Heat’s Hassan Whiteside on Nov. 10, 2016.

Robin Lopez fouls the Hawks’ Dwight Howard at Philips Arena on Nov. 9, 2016.