Federer splits with coach Annacone
Roger Federer has announced he has split with coach Paul Annacone following on from his disappointing exit at the Shanghai Masters.
The record 17-time grand slam champion has only won one title in 2013 and is battling to qualify for the end-of-season World Tour Finals at London's O2.
The former world No. 1 is in danger of failing to make it to The O2 at an event he is the six-time record champion of, and the Swiss feels the split with Annacone was the best time to make a change.
"After a terrific 3½ years working together, Paul and I have decided to move on to the next chapter in our professional lives," Federer said on his official website.
"When we started together we had a vision of a three-year plan to win another grand slam title and get back to the No. 1 ranking. Along with many other goals and great memories, these two main goals were achieved.
"After numerous conversations culminating at the end of our most recent training block, we felt like this was the best time and path for both of us.
"Paul remains a dear friend, and we both look forward to continuing our friendship. I want to thank Paul for his help and the value he has added to me and my team."
Federer was knocked out by Gael Monfils in the last 16 at Shanghai, and is at his lowest ranking for more than a decade in seventh spot.
Download ESPN's new UK sport app, a fresh and powerful new way to follow your favourite UK sports news, scores and video.