The sports hero talks exclusively to ET.

Los Angeles Lakers star player KOBE BRYANT tells ET's KEVIN FRAZIER that the rumors surrounding his alleged extra-marital affair with a Lakers cheerleader are 100 percent untrue -- and unfair to his family.

Setting the record straight, Bryant also denies even knowing the alleged cheerleader.

Bryant and his wife, VANESSA, were married in 2001. The couple has two young daughters.