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In a preliminary round BMX moto -- moto is what they call a heat in BMX, which made its Olympic debut in Beijing -- Bennett was involved in a five-rider pile-up at the first turn. That turn produced crashes in eight of the 12 semifinal heats. Bennett's wreck left him with a dislocated shoulder. He was down for a long time, then got up, waved off the doctors and, his arm out of the socket, rode the rest of the course, steering with one hand, finished the race. Check out a collection of BMX crashes by clicking here.

The U.S. men's basketball team, out for redemption, laid a 23-point preliminary-round beating on Greece -- retribution for a loss at the 2006 FIBA championships. The victory produced a play that underscored the athleticism, talent and bravado of the NBA stars on the U.S. team. In sequence: Dwyane Wade steals the ball. Wade's momentum carries him out of bounds along the wing edging toward halfcourt. He nonetheless has the quickness and court awareness to fire an alley-oop -- sideways, no less -- to Kobe Bryant. Who finishes with a monster slam.  To watch Kobe's dunk, click here.

The Swiss tennis star, with Stan Wawrinka, won Olympic gold in men's doubles. After all the money, all the titles, the fame, the glory -- Federer fought tears during the medals presentation. "Here you have the man who is arguably, with Sampras, the best-ever tennis player in the world. He has won everything. But the medal, the gold medal, he didn't have," International Olympic Committee President Jacques Rogge said. To see Federer and Wawrinka on the medal stand, click here.

It was a move she had done countless times: up and onto the beam. This time, though, in the team finals, Alicia Sacramone went up and lost her balance and came right back down. She would go on to miss a tumbling pass as well. The U.S. team would ultimately win silver -- the Chinese took gold -- and while the Americans did not lose because of Sacramone, she said, "I think I would feel a little better with myself if I didn't make those two mistakes." To watch Sacramone's post-finals interview, click here.

At the start of the Olympics, U.S. men's volleyball coach Hugh McCutcheon's father-in-law was stabbed to death in Beijing. McCutcheon stepped away from his job to take care of his family. But his team, stirred by the tragedy, began an incredible run which ended with a 20-25, 25-22, 25-21, 25-23 victory over defending champion Brazil -- a team that they were never expected to beat. "It hasn't been easy, not that it was ever going to be easy. But when you throw in the emotional load that the team has had to bear collectively, for them to come through and be this good is a wonderful achievement," McCutcheon said. To watch McCutcheon speak with NBC's Bob Costas, click here.