Former Florida running back Jeff Demps bypassed the NFL draft combine in February because he wanted to focus on training for his shot at the Olympics in track.

Demps went undrafted but he earned a silver medal in London as part of the U.S. 4x100-meter relay team. Now he is ready to resume his football career, signing Friday night with the Patriots. Demps, 5-foot-7 and 191 pounds, is the only Gator to have won national titles in two sports. While it was fun to speculate whether Usain Bolt could ever cut it in the NFL, Demps is actually a legitimate football prospect, averaging 6.7 yards per carry.

Here's a look at Olympians who actually competed in the NFL. This is not a comprehensive list -- anyone remember Giants quarterback Randy Dean competed in handball for the U.S. at the 1976 Montreal Olympics? -- but gives you a good sense that glory on the track doesn't necessarily translate to pro football success.

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