Boston Celtics coach Doc Rivers has been to many events during these Olympics — including the men's 100-meter showdown on Sunday night.

Rivers wasn't the only NBA name in the stadium: LeBron James, Carmelo Anthony, Kobe Bryant, Kevin Durant and others were a section away from where he sat to watch Usain Bolt race.

"Usain Bolt's the biggest act in town," Rivers says. "There's no doubt. Basketball, especially here, it's not as big. But track, it's amazing how big it is in other countries. I wish it was like that in the States. I really do. It's amazing to watch. It's 10 seconds. It's less than 10 seconds. It's amazing."

Rivers and the Celtics will open the new season in Miami on Oct. 30, when the Heat raise their championship banner in a pregame ceremony. Rivers laughed when saying the 100 final might "just barely" draw a bigger television audience.

"Hey, I don't want to watch the beginning of Oct. 30," Rivers says.

He watched Michael Phelps swim, saw some boxing and cycling as well. But his favorite event? Beach volleyball.

"It's hilarious," Rivers says. "It's a bar and an event at the same time. It's the most fun thing, by far."

— Tim Reynolds — Twitter http://twitter.com/ByTimReynolds

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