LONDON, May 13: Roger Federer has unexpectedly parted ways with coach Tony Roche two weeks before the start of the French Open.

“I thank Tony very much for his efforts over these last years, during which I appreciated the 12-15 weeks per season we would work together,” the world No 1said in a statement on Saturday.

“I am also grateful for the sacrifice he made, travelling so far from his home in Australia and leaving his family.”

The decision follows Federer's poor run of form in recent weeks. For the first time since becoming world No 1 in February 2004, the Swiss has gone four tournaments without capturing a title.

Federer has worked with the 61-year-old Australian, who had previously coached Ivan Lendl and Pat Rafter, on a part-time basis since 2005.

During their partnership Federer won six of his 10 Grand Slam crowns and maintained his place on top of the world rankings.

Federer needs to win the Roland Garros title to become only the third man after American Don Budge and Australian Rod Laver to hold all four majors at the same time.—Reuters