Novak Djokovic avoided a huge shock as he recovered from a two-set deficit to beat fellow Serb Laslo Djere and reach the US Open fourth round.
Djokovic, 36, maintained his bid for a record-equalling 24th major title with a 4-6 4-6 6-1 6-1 6-3 win in New York.
It is the eighth time in Djokovic's career he has fought back from two sets down to win.
On how a break after the second set helped his comeback, he said: "I did a pep talk in the mirror. It worked."
He added: "I laughed at myself because I was so agitated and annoyed with the game.