“3. Starting with my least favorite – ABS ! (plank 3x 1min & side bridge with arm twist 3x 1min & side bridge with legs going out 12x each side & side bridge with legs going in 12x each side) ! #abs #workout” – Photo by @misakrajicek via Instagram.

“Look back at it.” – Photo by @serenawilliams via Instagram.

“Nice shoes @MariaSharapova” – Photo by @wta via Instagram.

“Sometimes i forget how lucky I am to be playing in these awesome events. Arthur Ashe is coming along nicely @usopen #excited #blessed #lasttime ? ” – Photo by @tommyhaasofficial via Instagram.