Konta defeats ninth seed Muguruza in historic US Open epic

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Johanna Konta extended her winning streak to 15 matches as she dumped ninth seed Garbine Muguruza out to create a slice of US Open history on Thursday.

In the longest women's match at the grand slam event since tie-breaks were introduced in 1970, qualifier Konta celebrated a 7-6 (7-4) 6-7 (4-7) 6-2 triumph over this year's beaten Wimbledon finalist. 

Victory at Flushing Meadows – which was sealed in three hours and 23 minutes – also means Konta is through to the third round at the US Open for the first time in career, where she will face Andrea Petkovic. 

An 80-minute opening set eventually went Konta's way when the world number 97 forced the decisive mini-break at 4-4 in the tie-break. 

But Muguruza took it to a decider by digging deep at 2-1 down in the second set tie-break, only to see her hard work unravel in her opening two services games of the third and final set. 

Konta raced into a 3-0 lead and the Briton successfully served out the match.