Maria Sharapova has pulled out of next week's US Open due to a shoulder injury. The four-times grand slam winner, who triumphed at Flushing Meadows in 2006, fired coach Jimmy Connors last week after just one match together. The 26-year-old Russian, who is suffering from inflammation in her right shoulder, said withdrawing from the year's final grand slam was "a really tough decision to make". She said: "I have done everything I could since Wimbledon to get myself ready, but it just wasn't enough time. "I have done many tests, received several opinions, and it all comes down to taking the proper amount of time to heal my shoulder injury properly. It's certainly not an easy decision to make ahead of one of my favourite tournaments, but I know it's the right one that will get me back on the courts soon. "I plan on taking the next few weeks off, receiving proper treatment and rehabilitation." Her absence from Flushing Meadows at least puts to rest widely reported plans she had to legally change her name - to Sugarpova - for the US Open in a publicity stunt for her candy business.