Dated: Justin Verlander, Detroit Tigers (MLB) 
When: October

Rumors started flying in October that Detroit Tigers pitcher Verlander was dating Michigan native and bikini model Kate Upton, but Justin wouldn't say a word confirming or denying it, despite his grandfather basically validating it to gossip site Celebuzz. Because, you know, if you were dating Kate Upton, you'd want to keep that a secret. The best we can do is the following logic: They were maybe or maybe not dating then, and over a month later that status remains unchanged.