Andy Murray won another lengthy match with Matteo Berrettini, who appeared weary and leaned on his racket to keep his balance during Murray’s 4-6, 6-3, 6-4 victory Wednesday at the Miami Open. Playing his first match on the ATP Tour this season, Berrettini was serving with Murray leading 5-2 in the second set when he seemed to become dizzy, resting his racket on the court to hold himself up. He was visited by a medical attendant, who checked his blood pressure before play continued. Berrettini left the court after dropping that set but was able to finish the match, which last 2 hours, 49 minutes. It was a rematch of Murray’s 6-3, 6-3, 4-6, 6-7 (7), 7-6 (10-6) victory that lasted more than 4 1/2 hours in the first round of the 2023 Australian Open. “It was obviously a great win for me,” Murray said.