Del Potro undergoes surgery

BUENOS AIRES: Former world No. 3 Juan Martin del Potro has undergone surgery on his troublesome right knee for the third time in less than two years as he attempts to jumpstart his stalled career.

Doctor Roland Biedert, the favoured orthopaedic surgeon of Roger Federer, carried out the procedure at a clinic in Bern, Switzerland, his management team said on Wednesday, reports Xinhua news agency.

"del Potro and Biedert had been in contact since January," read the statement on Twitter. "In recent months, Delpo followed his doctors' advice and even tested the knee on a tennis court in Buenos Aires, but the pain persisted. After their first meeting in Bern, Biedert recommended new surgery." Agencies

Also Watch: Tea Tribes Demand Holiday on 'Karam Parab', Stage Cultural Protest