A Wristed Development

Jack is known for his backside, but the unique physical trait that has real upside to his game is his wrist.

Sock had an illustrious professional tennis career. He won four singles titles, 17 doubles titles, including four majors, is an Olympic champion and Bronze medalist. He covered the court well with his 6'-3" frame and dynamic shots – especially his forehand.

In real time, it just looks like a powerful and whippy shot, but when you slow it down there is a LOT going on.