Novak Djokovic has reached the US Open semi-finals after a flawless record in the last eight with victory over Roger Federer’s conqueror John Millman.
The 31-year-old earned a 6-3 6-4 6-4 victory over the Australian world number 55.
The Serb, twice champion at Flushing Meadows, has now won all 11 of his quarter-final matches in New York.
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He goes on to play Japan’s Kei Nishikori in the last four on Friday.