This question is pretty vague, so I'll leave the way to define "athlete" up to you. It can be someone who is so much better than anyone else that it's insane. It can be the best pure athlete you've ever seen. However you define it works.
As for which athlete, anything goes. It can be someone you've seen in real life. It can be someone you watched on TV. It can be someone you've only seen on YouTube. It can be someone not related to PSU, or you can be a complete homer and name a Nittany Lion. Hell, it can be Joey Chestnut if you're into that sort of thing. Anyone you want. WE LIVE TO SERVE YOU, THE READER.
Attach a highlight video if you want. The only rule: no Duke basketball players. Or just any Duke athlete. Duke Sucks.