Staff Photographer
Dallas Mavericks forward Dirk Nowitzki (41) is pictured before the Houston Rockets vs. the Dallas Mavericks NBA basketball preseason game at the American Airlines Center in Dallas on Wednesday, October 19, 2016. (Louis DeLuca/The Dallas Morning News)
How can we really know?
How in the world could we predict with any confidence how long 38-year-old Dirk Nowitzki is going to play at the NBA level?
There's no measuring stick to gauge when he'll finally lose the battle to Father Time. Yes, there have been big men who have played longer.