Olympics Sunday

TIP OFF: The U.S. basketball team, with youngsters Amare Stoudemire, LeBron James and Carmelo Anthony, assumes the "Dream Team" mantle in its debut against Puerto Rico.

THREEPEAT: The U.S. softball team takes on Australia, the only foe with a winning Olympic record (2-1) against the Americans, as they aim to duplicate their gold-medal triumphs in Atlanta and Sydney.

HEAD TO HEAD: American Michael Phelps and Australian Ian Thorpe, the two biggest names at the Olympic pool, face off — with their teammates — in the 400-meter freestyle relay.

PRIME TIME: From the pool to the mat, NBC focuses on women's gymnastics and swimming — with a touch of women's beach volleyball.