First sun and thus shadows of the afternoon. Muscular serving from Murray, and he holds that break with ease.

Image source, AFP

Image source, Getty Images

Mayday! Mayday! Major seed in a tailspin!

Garbine Muguruza - who lost in the first round of her warm-up event in Mallorca - is a double break down to Slovak world number 124 Jana Cepelova.

Cepelova has giant-killing form having offed Simona Halep in the first round last year.

Lu gets a toe-hold in the set with his first hold, and as the players go to their chairs the Centre Court patrons ride to stretch legs and shake the ice in their plastic Pimm's pots.

Australian rebel without a cause Bernard Tomic has overcome Radu Albot on Court One 7-6 6-3 6-7 6-3 to set up a third round meeting with Spain's Roberto Bautista Agut.

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Not a classical British summer's day, all grey up above and gusts round the back - oh behave - but Murray warming the cockles with some of these shots - Lu thinks he has the point won, only for the Scot to coast in and slap a winner down the line.

Image source, AFP

John McEnroe
Three-time Wimbledon singles champions on BBC TV

Second seed and French Open champion Gabrine Muguruza was outclassed in that first set. Here is a great drop shot from Jana Cepelova.  

Ian Bradley: Couple of years back a slow start for Murray meant set gone, can turn it around quicker now, adjusts brilliantly.

Craig David is proving a popular visitor at Wimbledon today. Here's Anne Keothavong, who posted this picture on Instagram, along with the caption: Made my day meeting Craig David.

Murray in his groove, the groundstrokes zipping, 32-year-old Lu being tugged around like a plastic bag in the wind - break taken, purrs of a approval from the Pimm's sippers all around.

Niko Flores: Cepelova has had some big scalps before (Serena and Halep here before). Are we in for another upset? First set to Jana  

Folarin Olawale: What is happening to our @rolandgarros, external champion Garbine Muguruza #Wimbledon, external do we see an upset coming  

Image source, Getty Images

Garbine Muguruza had a mid-set fightback, but it was not enough to bridge the gap back to Jana Cepelova.

The second seed has lost the first set.

And Slovak world number 124 has broken in the first game of the second set.

Upset brewing up fast.

Murray seems to have settled down after that first game. With the score at 3-3, he played this typical Andy Murray lob. 

Pat Cash
Former Wimbledon champion on BBC Radio 5 live

That was a great start by Lu. Andy looked a bit sluggish for a few moments there bit he did what he had to do.

Lu went off the boil towards the end and Murray started smacking a few good winners.

A cry of self-flagellation from Murray as he mis-hits a forehand at set point, and now Lu clatters away an overhead for break point. "AAANNDDYYY!" screams the home darling. First serve wide. Second serve short and asking for it, Murray scampering, backhand slicer, Lu foxed by the bite and into the net. He'll have another nibble here though as a Murray backhander eats net. Lu to the net on a horrible dropper, should stick this awa... no, long! Big serve out wide, lovely pick-up forehand off the laces, on his way...

Image source, Getty Images

Pat Cash
Former Wimbledon champion on BBC Radio 5 live

Ronnie Wood is here. He took my tickets for Court One, he might sneak into the commentary box. There's no tickets for Centre Court but if the match is finished on Court One I told him to get up here.

Grigor Dimitrov beat 16th seed Gilles Simon in four sets earlier today, 6-3 7-6 (7-1) 6-3 6-4. Here are five of the best shots from the match.

John McEnroe
Three-time Wimbledon singles champions on BBC TV