Roger Federer Out Of U.S. Open, Stunned By 55th-Ranked John Millman

NEW YORK -- Roger Federer served poorly. Closed poorly, too. And now he's gone, beaten at the U.S. Open by an opponent ranked outside the top 50 for the first time in his career. Looking slow and tired on a sweltering night in Arthur Ashe Stadium, Federer double-faulted 10 times, failed to convert a trio of set points and lost 3-6, 7-5, 7-6 (7), 7-6 (3) in the fourth round to John Millman in a match that began Monday and concluded at nearly 1 a.m. on Tuesday.

It's only the second time in Federer's past 14 appearances at the U.S. Open that he's lost before the quarterfinals. He is, after all, a five-time champion at the tournament, part of his men's-record haul of 20 Grand Slam titles.

For Federer, it was all about the heat and the humidity. With the temperature in the 80s, even with the sun down, and the humidity at about 75 percent, he was unable to summon his usual verve.