Image source, AFP

It's the perfect start for Watson, the Briton benefitting from a rare Kerber forehand error. Watson has cut the unforced errors down, the Briton has still made 20 to her opponents 12. Kerber responds, upping her aggression to rattle of the next four points to hold.

In the wake of Stan Wawrinka on Court One comes Maria Sharapova. The 2004 champion is taking on Swiss qualifier Timea Bacsinsky.

Bacsinsky has five languages, speaking French, Hungarian, English, German, Italian.

What she doesn't have are any real wins of any of the top 10 women, sneaking a couple via retirement over Hantuchova and Azarenka.

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Lindsay Davenport
1999 Wimbledon champion on BBC TV

"This is where Heather has to take advantage because Kerber has a habit of being passive on the big points. Great play from Heather, being consistent and being patient waiting for that right opportunity."

Nick Bollettieri
American tennis coach on BBC Radio 5 live sports extra

"Whatever the result, Heather is showing brightness right now. This is what tennis is all about. Play baby! Beautiful!"

Bruce Smeath:, external Heather Watson playing on centre court and there are tons of empty seats. Don't understand that at all.

Matthew Parker:, external Come on Heather Watson all in Guernsey are behind you!

Hurleyy:, external Big kudos to Heather Watson, putting in a massive effort against Kerber.

Indecision from Watson sees her switch from hitting a forehand to attempting a drop shot which ends up in the net to go 15-30 down. She recovers to 30-30 but then sends a backhand volley error gives Kerber break point.

Tremendous rally follows, Kerber running down everything as Watson attacks and attacks. Eventually, the resistance breaks down and Watson fires down the line. Deuce.

Kerber gets another break point but Watson saves it, turning defence into attack and putting a lovely forehand away into the corner. Deuce. Deuce again.

Another break point for Kerber, but another save from Watson with a fantastic forehand winner. The plucky Brit continues to go for her shots and is rewarded with a game point. Kerber finds the net and Watson holds! What a hold. Kerber must now serve to stay in the set.

Yep, it will be Denis Istomin, the Uzbek world number 45, who takes on Stanislas Wawrinka next. The 27-year-old has made steady, if unspectacular progress through Germany's Julian Reister.

Both players coming under attack on their serve, with Watson generating a couple of break points with some big, deep hitting. Kerber saves the first with an ace, but Watson converts on the next with a sublime backhand winner. We're back on serve.

Image source, PA

Stan Wawrinka finally tames Yen-Hsun Lu out on Court One. Two hours and 37 minutes on the clock and in the third round he will face the winner of the match between Denis Istomin and Julian Reister on court eight. Istomin is serving for the match in that one.

Watson's Wimbledon dream is hanging by a thread as Kerber brings up two break points on the Briton's serve. Watson saves the first, hammering a backhand down the line, but that same shot misfires on the next. Kerber breaks.

Wawrinka 7-6 (8-6) 6-3 3-6 6-5 Lu: Stan Wawrinka is still being held up by Yen-Hsun Lu. "Held up" as in delayed rather than "held up" as in robbed. But the fifth seed is serving for the match.

Soler-Espinosa 4-3 Bouchard: Eugenie Bouchard has kicked off on court two. The Canadian 20-year-old won her only previous meeting with silvia Soler-Espinosa.

Nieminen 6-6 Isner: As ever when John Isner is playing, it is looking like a long one. On serve out on court three.

Petkovic 6-4 3-6 5-1 Begu: Andrea Petkovic looks like she has defused a potentially messy situation.

Nick Bollettieri
American tennis coach on BBC Radio 5 live sports extra

"It is important for the future for Heather to play like this even if she ultimately goes down."

Lindsay Davenport
1999 Wimbledon champion on BBC TV

"Heather has seemed to pick up her game in the last few minutes. She is hitting the ball much more cleanly and is moving around the court with an extra spring in her step."

For the first time since early in the first set, Watson has break points on the Kerber serve thanks largely to a brilliant retrieval of a drop shot and a couple of Kerber errors. Watson goes for a big cross court forehand which drags the German out wide. Though she gets a hold of it, Kerber can't keep the ball in play and Watson breaks to love. Terrific response.

Lindsay Davenport
1999 Wimbledon champion on BBC TV

"The court coverage of Kerber is her big strength. There is no question Heather has got to go for her shots but there is a fine line between when to go for it and not to over play."

Image source, Getty Images

It's all quiet on Centre Court as Watson struggles on her serve. Her first serve percentage is down at 50% with Kerber really attacking the second. She is rewarded with two break points and she converts the first as Watson goes too big and fires into the tramlines again.

Watson piles the pressure on the Kerber serve, forcing the German world number seven to deuce. A Watson forehand just drifts long and though she bravely defends in the next, when she has a chance to put a forehand away, she pulls it agonisingly wide. Watson drops her hands to her side and stares at the miss in disbelief.

Marion Bartoli
2013 Wimbledon champion on BBC Radio 5 live sports extra

"The only way for Heather to win is to take more risks, change the pace, mix it up, be more aggressive with her footwork. She is being a bit passive. She is so smooth but look at the amount of steps Nadal takes in between taking shots. It means she isn't anticipating the next shot as well."

Image source, EPA

Good hold from Watson, the Briton turning to her box and clenching her fist as she clinches the game with a delicate drop shot. Now the challenge is to put Kerber under pressure on serve.

Lindsay Davenport
1999 Wimbledon champion on BBC TV

"You can't afford to leave too many balls in mid-court to Kerber because that's when she changes from a consistent player to an aggressive player. You've got to try and push her back with your depth."