John McEnroe
Three-time Wimbledon singles champion on BBC TV

"You'd better believe Nadal's team will have done some studying to make sure they check this guy out and make sure they are not fooled by anything that comes along in this match today."

Image source, Reuters

Four years now since Rafa won the men's singles title at Wimbledon, and in the last two he has failed to make it past this second round stage, Steve Darcis the unknown assassin last time out. He's begun in unflustered fashion this afternoon, however, the forehand pummelling, the eyes glinting.

#bbctennis

Matt McGladrigan:, external Remember camping in Wimbledon Park when Rosol beat Rafa. Such a loud roar when he fired down that ace on match point.

Nic MacLellan:, external Wouldn't mind tickets for court 2 today - looks like an awesome line up. Can't wait for Janowicz v Hewitt.

Craig Fraser:, external For Murray's sake, here's hoping Rosol can do the unthinkable and beat Nadal again!

Floaty dropper from Rosol, Nadal racing onto it, flaying a forehand back across the net - oh I say, splendid stretching volley from the Czech, dinking the ball back cross-court at the cutest of acute angles. Rosol in behind a big serve, running round the forehand, powering a winner into Nadal's unguarded backhand corner.

Laura Robson on Twitter:, external Hi @NiallOfficial, I like your wristband. #Rally4Bally

The One Direction circus has landed in Wimbledon

John McEnroe
Three-time Wimbledon singles champion on BBC TV

"To the last point you will ever play you are going to feel nerves. Believe me so is Rosol, trying to back up what he did two years ago."

Nadal, white bandana keeping the hair from his eyes, serves crunching and kicking - Rosol into the net with a backhand, and the second seed is into his groove.

Here's your first clue: since that splendid act of regicide, Rosol has won just two matches in Grand Slam tournaments. Here's your second: Rosol has won six matches on grass in his career, Nadal 51. But here's another: this year, both men have won exactly the same number of contests on grass. The underdog could bite again.

Lawrence Barretto
BBC Sport at Wimbledon

Heather Watson finishes a 40-minute practice session and is greeted by calls of "Good luck Heather!" as she leaves Aorangi Pavillion.

The British number one, smiling and blushing at the attention, signs a bunch of autographs, poses for a few pictures and then returns various pens to their rightful owners before heading down the tunnel to begin the final preparations for her match against Angelique Kerber later on Centre Court.

Peter Fleming
Seven-time Grand Slam doubles champion on BBC TV

(Rosol against Nadal in 2012) "He did a lot of things but the most special thing he did, was when everyone was waiting for him to choke, 11 out of the last 12 points he won were winners."

Mark Petchey
BBC Sport commentator

"Rafa has a way of punishing you when you beat him and generally that happens."

What an evening that was, two summers ago - Centre Court roof on, a strange yellow light filling the old arena, late-night crowd going ripe bananas, the unheralded and unknown Lucas Rosol destroying double Wimbledon champion Rafa Nadal with a near faultless display of big hitting and massive serving. Can history repeat?

Rafael Nadal strides out onto Centre Court to a hearty cheers and it is a similar scene in the BBC live text cabin as Tom Fordyce steps up to take you through the Spaniard's match against Lukas Rosol.

Over on Court 12, Gael Monfils is in a tailspin.

The Frenchman has coughed up the first two sets against Jiri Vesely, down 7-6 (7-3) 6-3 1-1.

We are just a few minutes away from the start of play on Centre and number One Court.

The Chelsea pensioners have been afforded a nice corner in the shade on Centre. They'll be thankful of that with the sun still beating down from up top.

Image source, Getty Images

Myles:, external No discussion of Wimbledon upsets is complete without Berdych's run to the final in 2010 plus Stakhovsky last year v Federer.

Adam Brimblecombe:, external Is it just me or do the outside courts at Wimbledon look to be playing a lot quicker than Centre Court and Court One?

Raonic 6-3 4-2 Sock: Milos Raonic is firmly in the driving seat on court three.

Gasquet 6-3 4-3 Kyrgios: Gasquet with a break in the second.

Siljestrom/ Zelenay 4-6 5-5 Marray / Smith: Britain's 2012 doubles champion Jonathan Marray and his Australian partner John-Patrick Smith are battling hard against the Slovak/Swede alliance.

D Kudla 3-6 2-5 K Nishikori: Tenth seed Kei Nishikori is working through American Denis Kudla with the efficiency of a sushi chef.

All the live scores are available on the BBC Sport website.

BBC Radio 5 live

Rosol v Nadal: "I don't think it will be a repeat of that win but I didn't think Rosol would beat him the first time. The way Rafa plays, people ask who I would like to play like, I can't even imagine the way he plays. He reminds me of Connors because he tried harder than anyone. Rafa plays every point as if it is his last."

Should ladies play five sets? "We have this question probably every year. I don't think there are a lot of people hammering for them to play best of five. If anything they should find a way to shorten the men's matches."

John McEnroe has just been granted an extra 15 minutes on BBC Radio 5 live. He is on until 13:00 BST. Get across it right here.

Sam Sheringham
BBC Sport at Wimbledon

"As the mercury rises on the roof, John McEnroe peels off his jacket to reveal a Keith Richards T-shirt. 'Do you know who this is?' he asks a bemused looking Tim Henman."

Lawrence Barretto
BBC Sport at Wimbledon

Image source, Getty Images

"It's a family affair down at the practice courts as Andy Murray gives his grandmother a big squeeze after practice and has a natter with her and his mother Judy.

"Then his grandfather, who has been sat on a chair watching intently by the side of the court for the whole session, asks him to pose for a photo with his grandmother and brother Jamie. That'll make the mantelpiece for sure."