PHOTO: Texans' J.J. Watt sitting with Caroline Wozniacki at national title game

Apple's Tim Cook and Green Bay Packers quarterback Aaron Rodgers aren't the only famous faces at Lucas Oil Stadium for the national title game. 

J.J. Watt, defensive end for the Houston Texans, is in Indianapolis to cheer on Wisconsin, his alma mater, which is battling Duke for the national championship. 

And that lovely blonde at his side? Pro tennis star Caroline Wozniacki.