Nathan Adrian, who swam for Cal from 2007-11, owns the nation's top seed entering the United States Olympic Trials in both the 50 (21.55) and 100-meter (long course) freestyle (48.05). Adrian is the No. 1 seed in the 100 free ahead of the legendary Michael Phelps (48.08).

Adrian concluded his collegiate career by propelling the Bears to the 2011 NCAA team title, capturing five NCAA crowns - the 50-yard freestyle, 100 free, 200 medley relay, 400 medley relay and 400 free relay. He also won a gold medal at the Beijing Olympics in 2008 as a member of the United States' 400 free relay, and ended up garnering five individual national crowns and was part of six NCAA championship relays during his years at Cal.

As you get ready to watch Adrian during tonight's Olympic Trials, check out these great videos featuring the former Golden Bear standout.