Haas sidelined after hip surgery

Haas lost in this year's Australian Open third round to Jo Wilfried Tsonga

Germany's Tommy Haas is set for a lengthy spell out of the game after undergoing hip surgery.

World number 18 Haas was operated on by Dr Marc J Philippon at the renowned Steadman Hawkins Clinic in Colorado.

The 2009 Wimbledon semi-finalist said: "I had to have the operation now. The pain was simply too great."

Haas reached second in the rankings in 2002 but has been dogged by injuries, including two broken ankles and three shoulder operations.

He also took a year out of the game to look after his parents following a serious car accident.

Haas enjoyed a renaissance in 2009, climbing back into the top 20, but has struggled this year, losing in the first round of his last two tournaments.

No timetable has been set for his return following this latest setback but he is certain to be out for a number of months.

His agent Lars Schriewer said: "Tommy has been operated upon by the best doctor in this field.

"He is in the best of hands. Everything else remains to be seen."

online pharmacy without a prescription | buy kamagra tablets | cialis super active+ 20mg pills