Novak Djokovic avenged his Wimbledon final defeat to Carlos Alcaraz by beating the Spaniard in just under four hours to win the Cincinnati Open.
The Serb survived match point in the second set before going on to win 5-7 7-6 (9-7) 7-6 (7-4).
Top seed Alcaraz beat Djokovic in five sets in last month's Wimbledon final.
"The feeling that I have on the court reminds me a little bit of when I was facing [Rafael] Nadal when we were at our prime," Djokovic said.
"I don't think I've played too many matches like this in my life.