D'Arcy Maine May 28, 2026, 12:14 PM ET PARIS -- For the first hour and 53 minutes during Thursday's second-round clash, top-seeded Jannik Sinner was in complete control against No. 56 Juan Manuel Cerundolo . With a 6-3, 6-2, 5-1 edge, there was just one game standing between him and the third round. But that's when everything fell apart. Sinner then couldn't find a way to win a point against Cerundolo in the intense afternoon heat on Philippe-Chatrier. While serving for the match at 5-4, 0-40, he leaned over with apparent cramps and then walked to his chair. He then left the court for more than nine minutes to receive treatment. But he continued to struggle. He lost the next point during what was ultimately a stretch of 18-straight points lost and seven games, extending into a once-unthinkable fourth set. And it didn't get better from there. In the fourth set, his movement seemed severely restricted and he failed to come to the net, or run, at times. He could be seen frequently limping and leaning over.…