Jae S. Lee/Staff Photographer
Dallas Mavericks forward Dirk Nowitzki returns the ball while practicing with Grand Slam doubles champ Mark Knowles at the SMU Tennis Center in Dallas, Thursday, Sept. 15, 2016. Andy Roddick, Ben Stiller, John Isner, Benjamin Becker, mark Knowles, Boris Kodjoe, J.J. Barea, Harrison Barnes and Mitchell Krueger are on the list of participating players at the Dirk Nowitzki Pro Celebrity Tennis Classic. (Jae S. Lee/The Dallas Morning News)
Dirk Nowitzki made the right decision all those years ago when he decided basketball was his calling.
But tennis was his first love.