Nowitzki makes 4-foot-8 Simone Biles look even tinier

Simone Biles and Dirk Nowitzki are perfect proof that athletes come in all shapes and sizes.

The four-time Olympic gold medalist, who's a mere 4-foot-8, snapped a photo with the 7-foot Nowitzki while visiting the Dallas Mavericks at practice Saturday with her Final Five teammates.