New York - Serena Williams' coach revealed that she is pain free as the US Open gets underway in New York.
The world number one - who nearly lost that title due to her absence in Cincinnati last week - has been struggling with a shoulder injury.
While it contributed to her loss at the Rio Olympic Games, coach Patrick Mouratoglou revealed that Williams is now playing pain free.
"She has been pain-free for a few days now," Mouratoglou told ESPN on Sunday.
"The shoulder is still not 100 percent but it's very close and she will find a way. She has a lot more to her game than just the serve she has the power and mental strength.
"She wanted to play the Olympics in Rio, it was very important for her but the shoulder was killing her. She was just putting balls in play, but that's the past."
Williams will be looking to win her seventh title in Flushing Meadows and move past Steffi Graf's Open Era record of 22 grand slam victories. She will face Ekaterina Makarova in the opening round in New York on Tuesday.