Marines fitness instructor puts Kate Upton through her paces

The U.S. Marines put supermodel Kate Upton through her paces on Tuesday during a workout in Detroit to promote the upcoming Marine Week celebration in the city.Upton struggled a bit at the end, but was able to complete the training routine that involved a series of aerobic exercises and running as her fiance, Detroit Tigers pitcher Justin Verlander, watched from afar. Upton joined several other Tigers players' wives and significant others in the session at Wayne State University's athletic compl