Roger Federer has split with tennis coach Paul Annacone
after more than three years working together.
Federer made the announcement just two days after
crashing out in the third round of the Shanghai Masters to Gael Monfils.
The former world number, now seven in the rankings,
revealed on his website that he was calling time on his relationship with
Annacone, who also coached Pete Sampras during his glory years.
