Take a look at ATP Tour pro Jack Sock as he spends a day at the gym preparing for competition.
Training to Conquer the World
No matter what, Sage Erickson always keeps her head above water. The 24-year-old professional surfer was barely into her teens when she turned pro in 2008, and she qualified for the World Surf League championship tour in 2012. A difficult 2013 season put her tour status in ...read more