Murray showed signs of his former self as he battled past Dustin Brown 6-3 6-2 6-2 on Wednesday to book a third round spot and he was joined by a host of Brits.
Murray went into the fortnight with doubts over his fitness and his form but he faces Italian Fabio Fognini today having breezed through his opening two matches.
Nadal was in full control of the match right from the beginning producing some winners all through the game leaving his American opponent much in awe of his grass court pedigree.
He faces Russian 30th seed Karen Khachanov next. Available on Android and IOS.
"Whether it's something that's just happened these last couple of weeks, like, subconsciously, when my hip's been sore, I've no idea".
But he could not follow it up in the way he would have wanted as he was beaten in five sets on Court 16 by Belgium's Ruben Bemelmans. But the rest of the match I served well, I was getting a lot of free points there.
Nadal, who is a two-time Wimbledon champion, reached the third round of the tournament for just the second time since 2011.
The 11th-seeded Kvitova, making a slow comeback after hand injuries following a home invasion six months ago, ran out of energy and was seen by the doctor on court in the closing stages of the match played in hot conditions.
Andy Murray continued the defence of his Wimbledon title with a comfortable and classy straight-set victory over Dustin Brown in uncomfortable conditions in SW19.
These days serve and volleyers are regarded as novelty attractions in a sport dominated by players more than happy to win back at the baseline. "I'm looking forward to seeing him out on Centre Court".
Murray admitted he's a fan of the Brown style, adding that the two men are close off the court, often messaging one another on a regular basis.
The current world number 2 Halep beat Marina Erakovic of New Zealand 6-4, 6-1 in the first round while Haddad Maia defeated Laura Robson of Australia, 6-4, 6-2.
"It was decided at the very last minute, I feel very fortunate to have come through that".
Nadal looked just as strong as he did against John Millman in the first round and beat Young 6-4, 6-2, 7-5. However, Murray was growing attuned to the German's movements and while in the first set Brown looked unpredictable, the home player seemed to have drained him of ideas. I want to make sure that everything is okay.
"I knew it was going to be a tough match because Sergiy's best surface is grass", the 27-year-old Nishikori said. He equaled his best performance at the London Grand Slam (he reached the third round twice before in 2010 and 2014) with victory over Jiri Vesely on Wednesday and beat Murray in straight sets the last time they met; on clay at the Rome Masters earlier this year.
Other notable men's results: Jo-Wilfried Tsonga and Sam Querrey advanced to set up the first important swing match of the men's draw.
Mischa Zverev picked up the theme after his first round match on Tuesday, an impressive 6-4, 6-3, 6-4 win over Bernard Tomic.