|Venue: All England Club Dates: 29 June - 12 July|
|Play: From 11:30 on outside courts and 13:00 on Centre Court and Court One|
|BBC coverage: across TV, radio and online starts with up to 15 live streams available. Read More: TV and radio schedules.|
Former champion Lleyton Hewitt lost in the first round on his final Wimbledon appearance as Jarkko Nieminen edged a thrilling five-set encounter.
Australian Hewitt, who won the tournament in 2002, was beaten 3-6 6-3 4-6 6-0 11-9 by Finland's Nieminen.
Hewitt, 34, will retire from tennis after the 2016 Australian Open.
Nieminen, also playing in his final Wimbledon at 33, will meet world number one and defending champion Novak Djokovic in the second round.
"That pretty much sums up my career," Hewitt said. "I'm fortunate that I have a lot of self motivation to go out there and get the most out of myself, whether it's in the gym or behind the scenes.
"I'm so fortunate. One of the greatest things about winning this Championship is becoming a member of it.
"For me to be able to go in the member's locker room four weeks before Wimbledon, in there with some of the older members, sit down and have a cup of tea and a chat, it's a lot of fun."
Stan the man
French Open champion Stan Wawrinka made short work of Portugal's Joao Sousa, racing to a 6-2 7-5 7-6 (7-3) win on Centre Court.
Wawrinka, the fourth seed, will face Victor Estrella Burgos in the second round.
"It was a great start and I'm happy to win the first match here," Wawrinka told BBC Radio 5 live. "Winning the French Open has given me a lot of confidence for sure, but everyone starts from zero in this tournament.
"I'm playing some of the best tennis of my career, every piece of the puzzle is fitting together and hopefully there's still more to come from me."
Another Grand Slam title holder, Croatia's US Open champion Marin Cilic, beat Japan's Hiroki Moriya 6-3 6-2 7-6 (7-4), while Canadian Milos Raonic, who reached the Wimbledon semi-finals last year, defeated Daniel Gimeno-Traver of Spain in four sets.
Bulgarian 11th seed Grigor Dimitrov, who beat Andy Murray in the quarter-finals last year, eased past Argentina's Federico Delbonis 6-3 6-0 6-4.
|What's on - and when?|
|Wimbledon order of play||Women's World Cup|
|British Grand Prix||The Ashes|
Concern for Kei
Japanese fifth seed Kei Nishikori had to overcome a leg injury to defeat Italy's Simone Bolelli in five sets for the second successive year.
Nishikori, who needed his left calf strapped in the final set, beat the world number 56 6-3 6-7 (4-7) 6-2 3-6 6-3 in three hours and 22 minutes on Court One.
"I'm very happy to win the match," the 2014 US Open runner-up told BBC Sport. "He's a tough player on grass.
"My leg should be OK. It was a little bit sore last week, but it's getting better. It wasn't easy to play three hours."
Australian Nick Kyrgios, who defeated Rafael Nadal last year, briefly threatened to stop playing during his straight-sets win over Argentine Diego Schwartzman.
Kyrgios, the 26th seed, was irritated after a line call went against him.
He even shouted "dirty scum" during the subsequent changeover, though Kyrgios, who won 6-0 6-2 7-6 (8-6), said the comment was directed at himself rather than an official.