Double Olympic champion Mo Farah won the 5,000 metres at the Diamond League meeting in Lausanne, Switzerland on Thursday, his first competitive race since doping allegations were made against coach Alberto Salazar.

The Briton, in his first outing since June 1, finished strongly in an exciting final lap against Ethiopian Yomif Kejelcha and punched the air and thumped his chest as he powered across the line.

Farah clocked 13 minutes 11.77 seconds, ahead of Kejelcha (13:12.59) and Kenyan Edwin Cheruiyot Soi (13:17.17).

Last month Salazar and Farah's training partner and U.S. Olympic silver medalist Galen Rupp were accused of violating anti-doping rules in a BBC documentary. Both men have denied any wrongdoing.

No allegations were made against Farah and he has reiterated his innocence on a number of occasions. He pulled out of last month's Diamond League meeting in Birmingham, citing stress.

The Briton is due to defend his world 5,000 and 10,000 titles in China next month. 

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