Three-time grand slam champion beaten by Daniil Medvedev in first round: Wimbledon, Day 1 round-up.
Wimbledon 2017: Wawrinka crashes out on Day 1 as Murray and Nadal comfortably advance
Swiss fifth seed and French Open runner-up Stan Wawrinka was knocked out of Wimbledon in the first round by Russia's Daniil Medvedev on Monday, losing 6-4, 3-6, 6-4, 6-1.
World 49 Medvedev, making his Wimbledon debut, goes on to face Belgian qualifier Ruben Bemelmans for a place in the last 32.
Defeat was Wawrinka's sixth first round loss at the All England Club although his efforts were hampered by a left knee injury which required an ice pack at the changeovers.
Defending champion Andy Murray celebrated the news that he is about to become a father again by reaching the Wimbledon second round.
Top seed and world No 1 Murray downed Kazakh lucky loser Alexander Bublik 6-1, 6-4, 6-2, shrugging off two brief rain delays and showing little sign of the hip problem which had plagued him in the build-up.
"I have felt OK the last few days and the adrenaline you feel by playing a match numbs any pain you may have," the Briton said after seeing off world No 134 Bublik who was making his grass court debut.
"Bublik is a bit of a character. He's a bit different from other players, tries different shots and the crowd enjoyed the way he plays."
Murray, whose baby daughter Sophia was born last year, next faces Dustin Brown, the man who knocked out Nadal two years ago.
German world No 97 Brown came back from a set and a break down to beat Portugal's Joao Sousa 3-6, 7-6, 6-4, 6-4.
Win for Nadal
Rafael Nadal moved seamlessly from months of claycourt success to a satisfyingly smooth first-round victory on grass as he opened his Wimbledon campaign with a commanding 6-1 6-3 6-2 victory over Australian John Millman on Monday.
Nadal missed the warm-up grass tournament at Queen's Club to look after his battered body following victories at the French Open and in Madrid, Monte Carlo and Barcelona but he looked comfortable on the faster surface and displayed the full array of groundstrokes that have earned him two Wimbledon titles.
Millman, who missed the first five months of the season with a groin injury, played his part in some entertaining rallies, particularly in the first two sets as Nadal, playing conservatively, worked on his rhythm.
However, the fourth-seeded Spaniard, who missed last year's Wimbledon through injury and was playing his first grass tournament match for two years, was always in control and seemed to be more concerned about his own shots than anything his opponent could dish up.
Nadal really hit his stride in the final set once he had mastered his timing, smashing a series of blistering forehands that left Millman as much a spectator as those crammed into Number One Court.
He finished with a flourish - a trade-mark crashing forehand on to the line - to wrap up the ideal victory in well under two hours.
"It was a very positive match for me, a good start," Nadal told reporters.
"At the beginning I was trying to not have a lot of mistakes, playing more safe, but I finished the match hitting some great forehands.
"That's the way I need to play - aggressive with my forehand - if I'm to have a chance here."
Kyrgios out with hip injury
Nick Kyrgios, who shocked Nadal at Wimbledon in 2014, will not get another opportunity.
The combustible 20th seeded Australian was 6-3, 6-4 down to France's Pierre-Hugues Herbert when he called it quits on Court Three after failing to shake off the hip injury which has plagued him in recent weeks.
"I kind of knew I was in trouble. I have been feeling my hip ever since I fell over at Queen's Club," Kyrgios said.
"Never got it right. I was doing everything I could to help it, but just not enough time. Yeah, I mean, I just wasn't 100 per cent.
Williams break down after win
Venus Williams marked her 20th Wimbledon anniversary with a 7-6, 6-4 win against Belgium's Elise Mertens.
The 37-year-old five-time champion arrived in London facing a wrongful death suit after she was involved in a fatal car crash in Florida.
An elderly man in the other vehicle suffered head injuries in the collision and died on June 22.
"There are really no words to describe, like, how devastating and ... yeah. I'm completely speechless," Williams said before tearing up.
Williams will face China's Wang Qiang for a place in the last 32.
Other notable wins
Marin Cilic's power game proved far too much for Philipp Kohlschreiber in the first round as the Croatian seventh seed swept his German opponent aside 6-4 6-2 6-3.
After a tight first set which he edged by snatching the only break point, 6ft 6in tall Cilic increasingly dictated terms with his big forehand and booming serve, which bought him a string of cheap points and dug him out of tight corners.
Kei Nishikori, the Japanese ninth seed, beat Italy's Marco Cecchinato 6-2, 6-2, 6-0 in just 72 minutes.
French 12th seed Jo-Wilfried Tsonga, twice a semi-finalist, eased past British wild card Cameron Norrie 6-3, 6-2, 6-2.
Sam Querrey of the United States, who stunned Novak Djokovic in the third round last year and precipitated the Serb's slide from the top, also made the second round.
The 24th seed saw off Italy's Thomas Fabbiano 7-6, 7-5, 6-2.
Women's second seed Simona Halep, blasted off court in the French Open final by Jelena Ostapenko, downed New Zealand qualifier Marina Erakovic 6-4, 6-1.
Halep, a Wimbledon semi-finalist in 2014, next faces Brazil's Beatriz Haddad Maria