If It's Hard For You to Build Muscle, Venus Williams Swears by These Moves

A strong core will improve power, stability, and balance. One of Venus's go-to core exercises is a plank with a weighted plate on her back.

"For legs, my strength work would include a leg press, deadlifts, and a hack squat," Venus said.

Before major tournaments like the US Open, Venus does mental training commonly referred to as visualization. This technique encompasses everything from visualizing herself waking up on the day of her match, putting on her uniform, hearing how loud the stadium is, smelling the various scents, and playing.