Back-to-back lets on first serve, then a failed toss.

Andy Murray doesn't let it put him off with a big serve and a big forehand - Stefanos Tsitsipas slips as he tried to reach it. It looked an awkward fall but he's straight back up.

Michael Emons
BBC Sport at Wimbledon

A great time to come up with his third ace of the match - on set point. That means the second set ends just as the first did, 6-3 to Medvedev.

One more set and he's into the third round. The winner of this one takes on either American Marcos Giron, the world number 65, or Hungary's Marton Fucsovics, two places lower at 67th.

John McEnroe
Three-time Wimbledon singles champion on BBC TV

We’ve seen signs of frustration from Murray on his return. He’s not quite doing his thing here.

Not even a sniff on the Tsitsipas serve, though as he holds to love with some absolute bangers.

Murray having a moan at his box, as he is wont to do on occasion.

Jonathan Jurejko
BBC Sport at Wimbledon

"Come on. Come on!" shouts Murray after sticking his nose back out in front.

The Scot shakes his racquet at the crowd as he looks to gets them amped up.

Murray under the lights has become pretty special in recent years, with the frenzied home fans playing a integral part in the wins over Nikoloz Basilashvili, Oscar Otte and James Duckworth.

Stefanos Tsitsipas, of course, is a different calibre to those opponents.

Pat Cash
Former Wimbledon champion on BBC Radio 5 Live

Andy has not seen the ball come this fast to him in the grass court season yet. But he will get used to it.

What an ace out wide from Muzza. Goodness me that kicked away from Tsitsipas.

Another error from the world number five follows and Centre Court roars in appreciation as Murray holds from 0-30 down.

Image source, PA Media

The Greek goes big again off the return but too big - it's long. The next one finds net as Murray relocates his first serve. 30-30 in a vital game.

Oh and Stefanos Tsitsipas senses the opportunity, big, big forehand down the line to put him 0-30 up.

Stefanos Tsitsipas wins a challenge on Murray's first serve - and the Brit proceeds to double fault.

Loses this game, he loses the set of course.

Image source, Reuters

Michael Emons
BBC Sport at Wimbledon

Adrian Mannarino has not had too much to smile about in this set, but he manages to keep the second set going, breaking the Medvedev serve with a lovely lob that gave the Russian no chance.

All good fightbacks have to start somewhere. Mannarino, after losing eight games on the bounce, has won two in a row.

Russell Fuller
Tennis correspondent on BBC Radio 5 Live

I see your volley, and I raise you another volley! The crowd love that on Centre Court and Murray using one or two of the crowd in front of us to gain a little bit of energy.

Al: Watching the cricket highlights on my laptop on iPlayer while watching the tennis on the TV with the sound down.

Love the multi-tasking.

Jonathan Jurejko
BBC Sport at Wimbledon

The Brits had plenty of optimism coming into this match.

Murray knows his way around the grass courts, Tsitsipas hasn't been playing well, Murray has had an extra day to recover...

They were a few of the reasons given why the British former world number one could win this match.

The reality was the outcome was probably about 50-50. Nothing we've seen so far has changed my mind.

This is so delicately poised. Centre Court knows it. Anticipation and tension hangs on every shot.

Andy Murray pumps his racquet in the air after an exquisite backhand volley at full stretch at the net.

However, he dumps a forehand into that same net next shot and it's another relatively comfortable hold.

Neither player has been taken to deuce on their serve yet.

Tim Henman
Former British number one on BBC TV

Murray is definitely moving so much better. Not quite as good as in his prime, but getting those matches in on the grass court gives him the best chance in a number of years at Wimbledon.

Michael Emons
BBC Sport at Wimbledon

Daniil Medvedev is in a massive rush to get this done tonight before the light on court two gets too bad. Maybe he wants to get to watch the Murray v Tsitsipas match?

The unforced errors are creeping into the Mannarino game, especially on his forehand, with Medvedev, mixing it up with some serve-volleying, on the verge of sprinting through the second set.

Mannarino ends a run of losing eight successive games but Medvedev is now serving for a two sets to love lead.

Good catch in the crowd as a Murray serve out wide flies off the frame of the Tsitsipas racquet.

An ace later in the game leaves the Greek flat-footed. You wouldn't believe this fella is 36 with a new hip. He holds to love.

Naomi Broady
British player on BBC Radio 5 Live

Andy's moving well and he needs to be - the pace of shot that Tsitsipas is hitting at him, he's having to cover a lot of court.

Marina: Time for "Late Night with Andy Murray."

Yep, it does have that feel, doesn't it?