Novak Djokovic won a record-equalling 24th Grand Slam singles title by outlasting Daniil Medvedev in a punishing US Open final in New York.
The 36-year-old Serb won 6-3 7-6 (7-5) 6-3 but the straight-set scoreline does not tell how deep he had to dig.
A comfortable opening set was followed by a brutal second which lasted one hour and 44 minutes.
After the pair exchanged breaks early in the third, Djokovic took control to level Margaret Court's 50-year record.
Second seed Djokovic had looked physically troubled, particular in that gruelling second set, but showed all the hallmarks of his greatness to win a fourth US Open title.