Eugenie Bouchard beats Magdalena Rybarikova 6-3 6-4
Roger Federer beats GB's Marcus Willis 6-0 6-3 6-4
Belinda Bencic beats Tsvetana Pironkova 6-2 6-3
No more play on outside courts; resume 11:00 BST Thursday
Radwanska 6-2 1-1 Kozlova
Kateryna Kozlova holds to love to level in the second set.
The world number 97 is working incredibly hard out there, covering every blade of grass.
Image source, Getty ImagesFederer v Willis
BBC Radio 5 Live
Marcus Willis' girlfriend Jennifer Bate: "This is the one match we are both so relaxed back. Through the pre-qualifiers and the qualifiers there were nerves there, they were intense but this is the he is super pumped about.
"He practised this morning, we have just had lunch together and he is super excited, super relaxed. He is ready."
Agnieszka Radwanska 6-2 Kateryna Kozlova
Lindsay Davenport
Former Wimbledon champion on BBC TV
Saving the best for last there, Aga.
There's no question the quality got better towards the end of that set, but we've seen so often Radwanska's able to lift the level of her game.
Aga did a nice job of defending her second serve - a few more unforced errors than we're used to seeing, but a very solid set from the number three seed.
Image source, ReutersRadwanska 6-2 Kozlova
It's advantage Agnieszka Radwanska, which means break and set point.
And the Pole takes it in style.
After a quick volley exchange, Radwanska lobs Kateryna Kozlova, and although she manages to flick it back over the net, the world number three finishes off with a drop shot.
Image source, ReutersWe've just heard play on the outside courts at Wimbledon will not start until at least 14:30 BST.
Everyone cross your fingers and toes and do a little sun dance, please.
Radwanska looking good early in the first set, this 'stunning' backhand the cream (sorry) of her early shots.
‘Stunning’ Radwanska backhand
Lindsay Davenport
Former Wimbledon champion on BBC TV
"Radwanska is the type of player you could put a tiny coin on the court and, after two or three shots, she could hit it. That's how precise she is off the ground."
Image source, ReutersRadwanska 4-1 Kozlova
A shift of power on Centre Court.
Third seed Agnieszka Radwanska storms through the first four games and looks to be cruising.
But a double fault at 15-40 and Kozlova breaks back to register her first mark on the board.
Now it's up to the Ukrainian to do something on her own service game.
Image source, ReutersDavid Church: Day off work to watch Wimbledon and only get centre court grrr. Go away rain please
Russell Fuller
BBC tennis correspondent at Wimbledon
“It’s so frustrating. On clay they would play through much worse. But the grass courts get very slippery. They’ve been fastening down the covers on court 17 so perhaps they know there’s a heavier spell round the corner."
Radwanska 3-0 Kozlova
Kateryna Kozlova looked confident early doors, but she's slipped away already.
The Ukrainian has been broken in her first service game, and Agnieszka Radwanska holds her own to take a 3-0 lead.
The 2012 Wimbledon finalist looks cool, calm and collected out there.
Image source, PAThis could not be more quintessentially British....
Radwanska 1-0 Kozlova*
Kateryna Kozlova, ranked 97th in the world, was pushing third seed Agnieszka Radwanska all the way in the opening exchanges.
The Ukrainian pushed the score to deuce, but could only poke a drop shot into the net as Radwanska took the game.
There is not much action with the players back indoors and off court, but Heather Watson is a break up against Annika Beck, and this lovely volley is proof that there was some tennis on today. Honest.
Smart Watson volley helps her to break Beck
Niall Abrahams: Think we need Beth Atkinson's sun dance again! Where are you?
Caroline Chapman
BBC Sport at Wimbledon
Britain's Andy Murray is like the Pied Piper for journalists and photographers.
The world number two strolls over to the practice courts and within seconds there's a flow of people behind him, tracking his every move.
Image source, bbc sport
Image source, TwitterIt is a bit late to get on the Marcus Willis bandwagon - standing room only on that vehicle.
But there is space in the sidecar. The Will Bombs have only gone and got on that there social media., external
Join their happy band for shoes off and volume up.
Image source, Getty ImagesA well-heeled elite in a bubble enjoying all the best action while those outside shiver in the rain? There is a metaphor for something in there...
Anyway play is about to begin under the lid of Centre Court.
The net is strung tight. The ball kids are standing to attention with spines ramrod straight.
And we await Agnieszka Radwanska and Kateryna Kozlova.
How do you show your support for British underdog Marcus Willis "Shoes off...."
Sue Barker shoes off