"I put myself in a very good position, but I will take things very slowly and cautiously," world No. 1 says.
The women's singles draw for the Tokyo Olympics is well balanced.
The men's singles draw at the Tokyo Olympics reveals Novak Djokovic's path to Golden Slam glory.
The trio will play for John McEnroe's Team World in Boston.
Fifteen Grand Slam singles champions are entered in the 2021 US Open field.
World No. 1 Novak Djokovic aims for the calendar Grand Slam and the men's major mark, while his top two rivals try to stop him.
"In times of difficulty, sport isn’t just necessary, it is vital," two-time gold-medal champion writes.
