Alexander Zverev overcomes knee issue to win at Wimbledon

Alexander Zverev overcame a knee problem, a marathon tiebreaker and nerves from seeing one of his sporting idols in the Royal Box in order to book a spot in Wimbledon's fourth round.

Zverev beat Cameron Norrie -- the last British man in the tournament -- 6-4, 6-4, 7-6 (15) on Saturday after converting his sixth match point in the tiebreaker on Centre Court.

He'd needed treatment several times on his left knee following a tumble in the second set. He was also a bit starstruck from seeing Manchester City manager Pep Guardiola, one of several major sporting figures in the Royal Box. Zverev is a massive fan of Bayern Munich, the German club that Guardiola coached from 2013-16.

"When I saw Pep I got so nervous for a few games there," Zverev told the crowd after the win, before launching a personal appeal to Guardiola. "Bayern Munich needs a coach, man. And if you're tired of football, you can coach me on the tennis court anytime."

Ben Shelton also reached the fourth round after the 14th-seeded American came through a third straight five-setter, beating Denis Shapovalov 6-7 (4), 6-2, 6-4, 4-6, 6-2 on No. 1 Court in a match that had been suspended overnight in the first set because of rain.

Shelton is the first man to win three consecutive five-set matches at Wimbledon since Ernests Gulbis in 2018. No one ever has won four five-setters in a row at any Grand Slam tournament in the Open era, which dates to 1968.

Other early winners included No. 16 Ugo Humbert, who set up a meeting with defending champion Carlos Alcaraz by downing Brandon Nakashima 7-6 (9), 6-3, 6-7 (5), 7-6 (6) in a match that had been suspended before the fourth-set tiebreaker.

Andy Murray's plan to team up with Emma Raducanu in the mixed doubles ended before the British pair could play a single point. Raducanu had to withdraw with a sore wrist ahead of her fourth-round singles match on Sunday, meaning Murray's Wimbledon career came to an anticlimactic end.

The 37-year-old Murray, a two-time singles champion at the All England Club, has said he will head into retirement after competing at Wimbledon and the Paris Olympics, which start this month.

He and his brother  Jamie lost in the first round of the men's doubles on Thursday on Centre Court.

Zverev was chasing down a shot at 2-2 in the second set when he seemed to hyperextend his left knee as his leg slid forward on the grass. The fourth-seeded German stayed down and winced in pain as he received treatment from a trainer, and then clutched the knee after he got back up.

He kept playing but said his movement was restricted after that and he would have his knee examined to determine the extent of the issue.

"I do feel like a cow on ice sometimes," Zverev said.

In the third-set tiebreaker, Zverev trailed 4-1 before fighting back to earn a first match point at 6-5, only to struggle mightily to close it out. The players traded chances back and forth as Zverev had to save a total of five set points before Norrie finally sent a backhand wide on the German's sixth match point.

Rain delayed play in the morning for a second straight day, with organizers already having some catching up to do after several matches were suspended overnight.

One match did not have to be played, however, as ninth-seeded  Alex de Minaur received a walkover into the fourth round when his opponent Lucas Pouille, a qualifier from France, withdrew with an abdominal injury.

Daniil Medvedev, a semifinalist at Wimbledon last year, endured lengthy rain delays and a fight from unseeded German Jan-Lennard Struff for a 6-1, 6-3, 4-6, 7-6 (3) victory to reach the fourth round.

The match had ground to a halt Friday after Medvedev cruised through the opening two sets and surrendered the third, but the Russian returned to the roofless Court 2 on another soggy day and held his nerve to prevail.

Seven-time champion Novak Djokovic also is set to play Saturday against  Alexei Popyrin in the late match on Centre Court.

Information from The Associated Press was used in this report.