Wimbledon 2014: Stan Wawrinka & Feliciano Lopez argue

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Watch Wawrinka and Lopez argue after match

Number five seed Stan Wawrinka and Feliciano Lopez have a heated debate after their fourth-round match at Wimbledon, which the Swiss won 7-6 (7-5) 7-6 (9-7) 6-3.

Tension between the pair was visible during the final set.

Wawrinka's victory means he has reached his first quarter-final at Wimbledon, where he will face compatriot Roger Federer.

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