Two-time champion Rafael Nadal marked his return to Centre Court with a 6-4 6-2 7-5 victory over Donald Young to reach the third round at Wimbledon.
The 31-year-old Spaniard, who missed last year’s tournament through injury, looked to be easing to victory until he was broken by the aggressive American when serving for the match.
But the world number two broke back and served out to love to seal the win.
Fourth seed Nadal will face Russia’s 30th seed Karen Khachanov on Friday.
Fellow top-four seeded players Roger Federer and Novak Djokovic play their second-round matches on Thursday.
“I played a solid match and served well until the break,” Nadal told BBC Sport. “It’s great to be in the third round without losing a set.
“I’m just trying to go day by day. I’m taking it easy, trying to enjoy every moment. This tournament is so special.”
Elsewhere on Wednesday, there were few upsets in this half of the men’s draw, which contains Nadal and Murray.
Two-time semi-finalist Jo-Wilfried Tsonga needed less than two hours to beat Italy’s Simone Bolelli 6-1 7-5 6-2 – although the French 12th seed was troubled by the swarm of flying ants that descended on Wimbledon.
“I’ve had a few experiences in the United States, with the light at night sometimes you have big bugs,” said Tsonga.
“But this was a little bit different, because these ones was very small but a lot, so it was special sometimes, it was in my nose and in my ear.”
Tsonga faces American Sam Querrey in the third round after the 24th seed saw off Georgia’s Nikoloz Basilashvili 6-4 4-6 6-3 6-3.
Croatia’s seventh seed Marin Cilic eased past Germany’s Florian Mayer 7-6 (7-2) 6-4 7-5 to set up a tie against American 26th seed Steve Johnson.
Despite a laboured performance, ninth seed Kei Nishikori came through 6-4 6-7 (7-9) 6-1 7-6 (8-6) against Ukraine’s Sergiy Stakhovsky and will meet Spain’s 18th seed Roberto Bautista Agut next.
However, 14th seed Lucas Pouille of France is out, beaten by 2013 semi-finalist Jerzy Janowicz, with the Pole sealing a 7-6 (7-4) 7-6 (7-5) 3-6 6-1 win.