From WENN.com

The rumoured couple rang in 2013 together at the Ritz-Carlton resort and fellow holiday-makers had little doubt the stars were an item.

One onlooker tells the the New York Post, ""He keeps a conservative distance, but still you can tell they are dating.""

Reports of a romance first hit the headlines last summer (12) when the Detroit Tigers pitcher and the Sports Illustrated swimsuit model were spotted hanging out together at several Detroit hotspots - they even attended an Aerosmith concert.

The pair met while shooting a video game commercial in February (12).