To do the drill correctly, you need to make a Frappier four square plyometric pattern. It is made up of two lines of 48 inches forming four squares of 24 inches in each direction. How do I do the ...

The USTA has a fantastic new footwork drill, with a run time going on 6 minutes, that provides a cardio workout and a hook—it was inspired by Stefanie Graf, or Steffi Graf as she was known in ...