Emma Hersey:, external I've completely forgiven Stepanek for beating Murray at Queens.

Radek Stepanek fires a peach of a serve down the middle, but Novak Djokovic manages to get a racquet to it. A few balls later and Stepanek fires wildly long on the and Djokovic leads 4-2 at the break.

Image source, Reuters

Broady saves two set points but her luck runs out when she pushes a forehand wide to hand Wozniacki the first set.

This set wasn't going to end any other way was it? We're into a tie-break, folks, as Radek Stepanek holds to 30. This could go either way.

Virginia Wade
1977 Wimbledon champion on BBC TV

"Naomi Broady hits the ball so well but isn't quite ready for the response. At this level of the game, you have to stay in the point until it's over. She's got to slow Caroline down a bit now."

Novak Djokovic is on the ropes as Radek Stepanek rustles up a break point. It looks to be set over as Djokovic stretches for a forehand and can only slice it back. But then Stepanek's drop shot is poor and the top seed easily reaches it to put it away for a winner. Deuce.

Another scintillating point has both players scrambling around before Djokovic brings up game point, as Stepanek hits the deck theatrically, and thumps the air as if he's won the match.

This game is far from over, though, as Stepanek challenges a call on the baseline and is proved right. Deuce. Djokovic wins the next and then it's a shame that game should end on a limp backhand return from Stepanek. Djokovic survives.

Image source, Getty Images

A powerful ace into the corner gives Broady a service hold, but unless she can break the Wozniacki serve she's going to be a set down soon.

Jo-Wilfried Tsonga ups his game in the second set tie-break to level up his match against American Sam Querrey. Bubbling up nicely on Court 2.

Broady, a 24-year-old who is appearing in her third Wimbledon, gets herself on the board by fighting back from 0-30 to hold serve.

Image source, Reuters

All goes to plan for Radek Stepanek, pictured here keeping a keen eye on the hawkeye replay, on his service game and we're inching ever closer to a tie-break and the possibility of a five-setter.

Virginia Wade
1977 Wimbledon champion on BBC TV

"Naomi Broady has worked very hard since the controversy over the social networking posts that saw her funding withdrawn. Since that happened, she's been the one in practising every single day. She's said that she was the only one. She knew that because she was in the doghouse, she had to work. I have a lot of sympathy for her and I hope she does really well.

"I feel so bad for Broady because everywhere you look, it's one story about her. Caroline Wozniacki must be glad that, for once, all the off-court news items are not about her.

"It's so difficult to win points against Wozniacki, who prefers her backhand. Her cross-court forehand is excellent too, but she doesn't have the forehand to penetrate down the line. So because opponents play to her forehand, you often get into a pattern when she plays of a lot of cross-court forehand tennis. I don't think Naomi is going to beat Caroline at her own game. She has to play some down the line shots to Caroline's backhand."

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Jack Beecroft:, external I wonder what Stepanek has for breakfast, he's like a Duracell bunny.

Always the entertainer, Radek Stepanek goes for a passing shot down the line, but it drifts just wide. He jogs over onto Novak Djokovic's side of the court and then hurdles the net to return to his chair. Warm applause all round. Djokovic leads 6-4 6-3 6-7 (5-7) 5-4 Stepanek.

Wozniacki, the Danish 16th seed, reached the final of the US Open in 2009, when she was beaten by Kim Clijsters. She holds serve against Broady and forces an early break when the 6 ft 2 ins Brit dumps a backhand into the net. Ominous signs.

Jo-Wilfried Tsonga, the 14th seed, has plenty of work to do on court two having lost the first set 6-4 to American Sam Querrey. He leads 6-5 in the second, but we're on serve.

I'd say it's about 80% full on Centre Court as we approach 19:00 BST, six hours after play began, and that's because Novak Djokovic is in one almighty tussle with Radek Stepanek who has the bit between his teeth. Djokovic leads by two sets to one but it's locked at 3-3 in the fourth.

John McEnroe
Three-time Wimbledon singles champion on BBC TV

"Stepanek hasn't deviated from the plan and that is to be unpredictable. He has succeeded at that mightily."

Image source, Getty Images

Broady, who stands a good few inches taller than her opponent, is hopping around as she starts to warm up with former world number one Wozniacki. The British number four won her first match at a Grand Slam on Monday as she came from a set down to beat Hungary's Timea Babos at Wimbledon. The 24-year-old wildcard from Stockport, ranked 164, overcame the world number 94 2-6 7-6 (9-7) 6-0. You can watch the match live on this stream.

Anne Keothavong
Former British number one on BBC TV

"That's the biggest upset we've had at the championships so far. Victoria Azarenka fought her heart out but she wasn't good enough when it really mattered. She showed some rustiness having been out of the game for a few months with that foot injury. But credit to her opponent. Bojana Jovanovski showed so much tenacity, aggression and heart, and really deserved that win."

Victoria Azarenka, the former world number one and two-time Australian Open winner has never been beyond the last four at Wimbledon - and she won't be improving on that record this year. The eighth seed has been beaten by Bojana Jovanovski of Serbia, the world number 45, 6-3 3-6 7-5.