Andy Murray's hopes of winning the US Open could be hampered by the Olympics, according to his mother Judy.
Murray, the newly crowned Cincinnati Masters champion, heads to Beijing to take part in the singles and doubles events.
However with the tournament ending just eight days before the start of the US Open there will be little time for players to recover.
And Judy Murray told Sky Sports News: "It pops in at a difficult time in the tennis calendar, right after two Masters Series events and right before the last grand slam of the year.
"So it's really tough and it's a long way to travel as well, so I think it's going to be really difficult for tennis players.
"I think anybody who does well at the Olympics is unlikely to do well at the US Open.
"But Andy will be going over there and really looking forward to being part of the British team and supporting the other athletes, and playing doubles with his brother.
"He'll be aiming to bring something home in some shape or form and if he plays well he has a good chance of doing that.
"I think if you asked any tennis player they would probably say that grand slams are the most important thing.
"But the Olympics only comes around every four years. All of the top guys are playing it. It's going to be a terrific field."

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