Dirk Nowitzki during Champions for Charity at BayArena, Leverkusen, Nordrhein-Westfalen, Germany on 2019-07-21, Photo: Sven Mandel

Basketball preparation match at Mercedes-Benz-Arena Berlin in preparation for the 2023 Basketball World Championships: Germany vs. Canada (86:81)

Basketball preparation match at Mercedes-Benz-Arena Berlin in preparation for the 2023 Basketball World Championships: Germany vs. Canada (86:81)

Basketball preparation match at Mercedes-Benz-Arena Berlin in preparation for the 2023 Basketball World Championships: Germany vs. Canada (86:81)

Dallas Mavericks vs LA Lakers

Weißenfels, castle Neu-Augustusburg, shoe museum, shoe of basketball player Dirk Nowitzki

Chauncey Billups at the freethrow line, after a technical foul was called on Mavericks forward Josh Howard. Taken at Game 5 of the NBA Playoffs 2nd round on May 13, 2009, with the Dallas Mavericks visiting the Denver Nuggets at the Pepsi Center. On the bench, L-R: Casey Smith (trainer), Dwane Casey (assistant coach), Terry Stotts (assistant coach), Mario Elie (assistant coach), players DeSagana Diop, Jose Juan Barea, Darrell Armstrong, Jerry Stackhouse, Gerald Green, Matt Carroll, Ryan Hollins, James Singleton, and Antoine Wright; Robert Hackett (strength/conditioning coach)

The Denver Nuggets' Dahntay Jones attempts a jump shot over the Dallas Mavericks' Dirk Nowitzki in Game 5 of the Western Conference Semifinals between the two teams at the Pepsi Center in Denver, Colo. on May 13, 2009.

Dallas Mavericks players warming up before game 5 of the second round series vs. Denver Nuggets on May 13, 2009.

President Barack Obama jokes with members of the Dallas Mavericks in the Green Room of the White House before honoring the team and their 2011 NBA Championship victory, Jan. 9, 2012. (Official White House Photo by Pete Souza)