He competed in 'bobsledding' at the winter Olympics.
He drove a 'bobsled' in the winter Olympics.
the 'bobsled' competition
(..) Come on, you need a four-person team. We're four people. By that reasoning we should also play Bridge, hold up a chuppah and enter the Olympic bobsled competition. Tickets to that, please. Sheldon, what, do I need to quote Spock's dying words to you? No, don't. "The needs of the many... (..)2008 TvShow: The Big Bang Theory Title: The Bat Jar Conjecture Season: 1 Episode 13