A Shirtless Andy Murray Heats Up The Track [PHOTO GALLERY]

23-year-old UK tennis wiz Andy Murray hit the track with his training team on his second day of winter training yesterday. Andy is currently ranked at number four in the world!

Seen here during a 400m sprint/run evolution he made great time when we were there as he crossed the line just over 60 seconds! Murray is based in Miami for his intensive training sessions that will go non-stop until the New Year 2010.