Five-time champion Roger Federer withstood early pressure to beat Australian Nick Kyrgios in three sets on Saturday and reach the US Open last 16.
Federer, 37, saved four break points in a mammoth seventh game in the first set, going on to hold and then break at 5-4 for the opener.
After that, Kyrgios lost focus as Federer wrapped up a 6-4 6-1 7-5 win in one hour 44 minutes, the BBC reports.
The Swiss second seed will next face Kyrgios' compatriot John Millman.
Federer, who has won a record 20 Grand Slam titles, has not triumphed in New York since 2008.
After losing in the Wimbledon quarter-finals, he took a break from competitive action as he made regaining the US Open crown a "bigger priority".
So far it has paid dividends as he has reached the last 16 for a 17th successive time without dropping a set (not including 2016 when he missed the tournament).
Kyrgios, the 30th seed, failed to go beyond the third round at Flushing Meadows for a sixth time.
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