中新网8月3日电 在刚刚结束的伦敦奥运会网球男子单打半决赛中，瑞士天王费德勒以2-1艰难战胜德尔波特罗，晋级决赛。

Beijing August 3, just after the end of the London Olympics in tennis men's singles semi-finals，Switzerland's Roger federer to 2-1 difficult victory over DeErBoTe ronaldo，final。

　　两人比赛打的非常胶着，决胜盘一直战至19-17，费德勒才艰难涉险过关。

Two people playing very close game，War has been staving to 19-17，Roger federer to pass their difficult。