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Alexander Zverev came through yet another gruelling five-setter to reach the third round of the US Open.
The sixth seed won a see-saw battle against American Frances Tiafoe 6-3 3-6 6-2 2-6 6-3, two days after going the distance against Radu Albot.
It was the 11th time the 22-year-old German has gone the full five sets in his relatively short career.
6-3, 3-6, 6-2, 2-6, 6-3 Another five setter for the No. 6 seed as he defeats Tiafoe to reach R3!@AlexZverev | #USOpen pic.twitter.com/9ne1hqBpv4
— US Open Tennis (@usopen) August 29, 2019
"I've been here before," he said afterwards. "It's usually what I do in the first few rounds of a grand slam, play five sets. Maybe it's to entertain the crowd.
"Frances gave me a real fight. I'm just happy to get the win somehow. I know if it goes the distance I am ready.
"I've known Frances since we were little kids, we played each other all through juniors.
"Every match we play is getting tougher and tougher, hopefully that will continue and we will play bigger matches throughout our careers."
David Goffin, the 15th seed from Belgium, beat French qualifier Gregoire Barrere 6-2 6-2 6-2.
