Washington, Aug 12 : Kate Upton, who's been dating baseball star Justin Verlander, joked that she had been "sleeping with the enemy."

During her recent appearance as a guest host on 'Live With Kelly and Michael,' the 22-year-old Sports Illustrated model, who's a Bronx Bombers fan, revealed that she has been forbidden from sporting her favourite teams gear to Yankee Stadium, Us magazine reported.

The beauty, who considers herself to be a "really big Yankees fan," added that it was difficult to chooses a side, but since her boyfriend plays for the Tigers, she had to change allegiances. (ANI)