Andy Murray beats Nikoloz Basilashvili 6-4 6-3 5-7 6-3
Murray served for match three times in third set, which he led 5-0
Match resumed with roof closed on Centre Court for fourth set
Heather Watson loses deciding set 8-6 to Kristie Ahn on Court One
Two-time champion Petra Kvitova loses 6-3 6-4 to Sloane Stephens
French Open finalist Stefanos Tsitsipas beaten in three sets by Frances Tiafoe
Novak Djokovic beats Jack Draper 4-6 6-1 6-2 6-2 on Centre Court
*Murray 6-4 6-3 5-7 2-1 Basilashvili
No-one wants to hold their serve in a dramatic fourth set already. Murray breaks, Basilashvili breaks back, Murray breaks again with a poor service game from his opponent
Great drama and once again Murray has a roadmap to round two. If he keeps hold of his serve for the rest of this match then he wins it.
John McEnroe
Three-time Wimbledon singles champion on BBC TV
You talk about a rollercoaster, both mentally and emotionally.
And we're only early in the fourth. Can you imagine if this goes to five [sets]? I'm starting to imagine.
*Murray 6-4 6-3 5-7 1-1 Basilashvili
A beautiful backhand from Basilashvili, who has the time and quality to pick his spot, and he splays it into the corner, leaving Andy Murray helpless.
Murray broke in game one of set four, Basilashvili breaks back immediately afterwards.
Murray 30-40, trying to hang on to his serve.
We're only on day one of the tournament and already it's pretty special.
Simona Halep was the women's title in 2019 but was unable to defend the trophy because of injury. Her season has just got even worse as she has just announced she will miss the Olympics too.
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*Murray 6-4 6-3 5-7 1-0 Basilashvili
A spell off court and Murray is back as the Murray from the first two sets, not the second half of the third set.
A break to love. Murray could've done that in the last set to finish off the match when he had the chance.
Nevertheless, he leads 1-0 in the fourth.
Murray with a quick chance of a break at the start of the fourth. He moves into the net and forces Basilashvili to try to pass him, but the 24th seed can only send it long. Three break points.
John McEnroe
Three-time Wimbledon singles champion on BBC TV
The let down, emotionally and physically, Andy Murray must have felt after dumping that set.
This is going to be a tall order for him to win this now.
Murray 6-4 6-3 5-7 Basilashvili
Right, roof closed, players back out there. Where were we?
Murray 6-4 6-3 5-7 Basilashvili
In our quick vote we asked who is going to win this one. The majority of you are tipping Andy Murray, but it's far closer than it would've been an hour ago.
Image source, .Murray 6-4 6-3 5-7 Basilashvili
The players are back out there and will have a few minutes warming up before we restart. Who will that break have helped more?
Ahn 2-6 7-6 (7-2) 0-0 Watson
It's not to be for Heather Watson in the tie-break, as the Briton loses 7-3 and will now have to contest a third set decider against American Kristie Ahn.
Ahn raced into a 6-1 lead, and though Watson managed to pull back a couple of points it was always going to be a big ask to turn that around.
There will be a pause in play now as the roof is closed on Court One.
Who wins this one? Thumbs up for Andy Murray, thumbs down for Nikoloz Basilashvili
I can't believe I'm even asking this as Murray was in complete control at 5-0 in the third after winning both the first two sets.
Right, with the players off court as the roof closes, let's have a quick vote.
Who's going to win this match? Thumbs up for Andy Murray, thumbs down for Nikoloz Basilashvili.
#bbctennis
Alice Stainer: Crazy scenes on #CentreCourt, external. #AndyMurray, external has forgotten how to play, but I firmly believe it is a temporary blip. Pause to close the roof surely in his favour.
Murray 6-4 6-3 5-7 Basilashvili
Jonathan Jurejko
BBC Sport at Wimbledon
Feels like heading off court for a wee while is a blessing for Andy Murray.
There is a sense of bewilderment on Centre of what they've just seen.
"Well, it wouldn't be Andy without some drama would it?" mutters one woman.
British number two Heather Watson is still battling away against American Kristie Ahn on Court One.
Having claimed the first set 6-2, Watson was broken twice in the second set but saved a set point before breaking back to level at 5-5.
She's now into a tie-break. Can she wrap up the match here? It's live on BBC One right now.
The players head off, just as Andy Murray would've expected about half an hour ago.
However, this is just for the roof to be closed, which will take about 15 minutes before the players will be back out there.
Get some coffee, or something stronger, this one's not done yet.
John McEnroe
Three-time Wimbledon singles champion on BBC TV
I am going to look at the glass half full. Basilashvili started to battle again.
Murray lost his serve four times in a row, when he hadn't lost his serve.
Andy Murray has just lost his serve FOUR times in a row.
At 20:42 BST, it moves from an outdoor match to an indoor one. The roof is closing and we're going long.
Murray 6-4 6-3 5-7 Basilashvili
Into a fourth. From 5-0 down, Basilashvili wins seven games on the bounce.
Murray has had two match points. The Georgian looked down and out, then from nowhere we're into set number four.