WIMBLEDON, England — Top-seeded Jannik Sinner was treated by a trainer and left the court during the third set, seemingly surged in the fourth and then faltered again in the fifth, eventually losing to Daniil Medvedev 6-7 (7), 6-4, 7-6 (4), 2-6, 6-3 in the Wimbledon quarterfinals on Tuesday.
It was not immediately clear what was wrong with Sinner, who had his heart rate checked while sitting on the sideline before heading to the locker room. The 22-year-old from Italy returned after about 10 minutes and resumed playing, but lost the first game back at love.
After getting broken by 2021 US Open champion Medvedev to fall behind 2-1 in the third, Sinner requested medical attention and leaned back in his chair at Centre Court. He rested his head in a hand at one point while speaking with the trainer before they headed toward the locker room.
During a later changeover, Sinner draped a towel over his head. While he did regain his usual verve, particularly on his booming forehand, and pushed the match to a fifth set — the 36th this fortnight and the most at any Grand Slam tournament in the Open era, which dates to 1968 — Sinner could not get over the line.
Medvedev, who is seeded fifth at Wimbledon, began finding the space to deliver more winners, compiling 13 in the closing set alone, and broke for a 3-1 lead, then held for 4-1 and was on his way back to the semifinals.
The Russian lost to eventual champion Carlos Alcaraz at that stage in 2023 and will meet him again. Alcaraz beat Tommy Paul 5-7, 6-4, 6-2, 6-2 on Tuesday in the quarterfinals.
Sinner carried a nine-match winning streak into Tuesday, including a grass-court title at Halle, Germany, last month. He moved up to No. 1 in the ATP rankings, replacing Novak Djokovic there, on June 10 after getting to the semifinals at the French Open.
His exit follows that of the No. 1 women’s seed, Iga Swiatek, in the third round.
Medvedev had lost his five most recent matches against Sinner, including in the final of the Australian Open in January. That day, Medvedev took the first two sets, before Sinner clawed all the way back to win in five for his first Grand Slam title.
That result dropped Medvedev’s career record in major finals to 1-5. Now he’s one victory from a seventh such appearance.
Information from The Associated Press was used in this report.