Rafael Nadal was again forced to dig deep to reach the Wimbledon third round on Thursday as women's top seed Iga Swiatek survived a stumble to win her 37th match on the spin.
The Spanish second seed, chasing a calendar Grand Slam, recovered from losing the third set for the second straight match to beat Lithuanian journeyman Ricardas Berankis 6-4, 6-4, 4-6, 6-3.
Earlier, Spanish 17th seed Roberto Bautista Agut became the third potential dangerman in Nadal's half of the draw to pull out with coronavirus, following the withdrawals of 2021 runner-up Matteo Berrettini and 2017 finalist Marin Cilic.
Nadal has also benefited from a shock first-round exit for Canada's sixth seed Felix Auger-Aliassime, who took him to five sets at the French Open.
Nadal looked comfortable in the first two sets against Berankis but was broken in his first service game of the third set and could not claw his way back.
But the Spaniard regrouped and raced into a 3-0 lead in the fourth set, sealing the match with an ace after it resumed under the roof following a sharp rain shower.
The 22-time Grand Slam champion, who has not played at Wimbledon since reaching the 2019 semi-finals, admitted he needed to step up his game as he prepares to face Italy's Lorenzo Sonego.
"I didn't play much on grass in three years," he said. "It gives me the chance to keep going, so very happy for that.
"I need to improve. The fourth set was much better.... I have to keep working, be humble, even when things are not going well."
Stefanos Tsitsipas and Australian maverick Nick Kyrgios remain two of Nadal's biggest challenges and they will meet in a mouthwatering contest on Saturday.
Kyrgios was on his best behaviour on court as he steamrollered Serbian 26th seed Filip Krajinovic 6-2, 6-3, 6-1 in just 85 minutes.