Novak Djokovic reached a record 47th men's Grand Slam semi-final with a straight-set win over Taylor Fritz at the US Open.
The Serb, 36, prevailed 6-1 6-4 6-4 on Arthur Ashe Stadium to continue his pursuit of a record-equalling 24th Grand Slam title.
Djokovic achieved his victory despite temporarily appearing to struggle with the heat and humidity in New York.
The three-time champion faces Frances Tiafoe or Ben Shelton in the last four.
The winner of Tuesday's all-American quarter-final between Tiafoe and Shelton will now carry the host nation's hopes of a first men's singles champion for 20 years following world number nine Fritz's defeat.