Djokovic juggernaut rolls on

Never fazed, rarely flummoxed, Novak Djokovic is so collected in best-of-five-set matches even when falling behind, as he has done repeatedly at the US Open.

No opponent, or the prospect of what's at stake, has been too much to handle. Not yet, anyway. And now he's two wins away from the first calendar-year Grand Slam in men's tennis since 1969, along with a men's-record 21st major championship overall.

Djokovic ceded the opening set for the third consecutive match at Flushing Meadows－and ninth time at a major in 2021－but again it didn't matter, because he quickly corrected his strokes and beat No 6 seed Matteo Berrettini 5-7, 6-2, 6-2, 6-3 in a quarterfinal that began Wednesday night and concluded after midnight Thursday.