Petchey's picks

Rosol's remarkable upset

Nobody could have predicted that Lukas Rosol would knock out the number two seed. It's the biggest upset I've ever seen, especially when you consider how well Rafael Nadal has been playing in the last few months and how well he has played on Centre Court in the past. It's difficult to step out on that particular court and play that well, especially when you're ranked 100th in the world. It was a remarkable day of tennis.

I don't think anyone can explain how it happened. It just goes to show that on any given day, anyone can beat anyone if they raise their level. Obviously certain things played into Rosol's hands; the roof shutting after the fourth set was huge for him. Had that not been the case then I think Nadal would have gone on to win. Sometimes fate does play a part, but you have to give credit to him for the final set. Not too many people are going to hit 20 winners against Rafa and close games off in the style that he did. Things conspired for him and he deserves credit for taking his chance.

Murray's late show

Andy Murray found himself in a difficult situation against Marcos Baghdatis, who is a great player. He came up with a massive forehand to not go down a break in the first set and he played some of the big points exceptionally well. He had to handle the occasion very carefully as the match edged towards the 11pm curfew with the roof shut. There must have been lots of things on his mind, like not having a day's break, and I thought the way he kept his focus - particularly in the fourth set - was impressive. It holds him in good stead going towards, hopefully, the final.

As I said earlier, fate can play a part. His next opponent Marin Cilic had an epic match on Saturday and would have been hoping that Murray had to go back on Monday to give him an extra day to recover. Things have worked out well for Andy in a number of ways because he will not have to face Nadal in the semis, but he's still got a tough section of the draw. If Murray gets past Cilic he may have to face Jaun Martin del Petro, who seems to have found his groove on grass. I watched him on Saturday and he's showing a real resurgence. Murray has some very difficult opponents to get past to even reach the last four.

Roger's class comeback

Julien Benneteau played some fantastic tennis to go two sets up against one of the best players of all time. The Frenchman came out, served well and hit the ball great and he showed how hard it is to get to the net and dominate on grass these days. However, Roger Federer's desire to win is still so strong after 16 majors and all he has achieved in the game. He's been at the top of the game since 2003 - almost a decade - and there are very few players who've been able to stay in the world top three for that length of time. His fight and desire is simply exceptional.

If he wins on Monday it will be his 33rd consecutive quarter-final in a Grand Slam and that is hard to believe, especially when you put it in the context of Nadal's defeat. Roger has never come up short against someone who has played inspired tennis against him in an early round of a Grand Slam.

Shvedova's Golden Set

Yaroslava Shvedova's achievement was incredible, simply unbelievable. To win 24 points in a row against Sara Errani was simply stunning. There's nothing you can really say about it because it beggars belief that somebody could win a set without dropping a point. It's so rare in the game and to do it at this stage of a Grand Slam is just one of the most remarkable feats of all time in sport. You could never, ever, ever have predicted that something like that could happen. I could understand somebody doing it against me, but against a good player it's pretty unbelievable!

Serena's epic win keeps things alive

Things are hotting up in the women's draw. Serena Williams had to come through a bit of an epic against Joe Zheng and even though she hasn't found her best in the first week she might do so in the second. Petra Kvitova has come into the sort of form that we hoped for and she's definitely thrown her name up there. Somebody will have to play unbelievably well to beat her. Victoria Azarenka also looks like she's regained her form after a bit of a dip at the French Open. It looks like she's enjoying the grass.

I think Maria Sharapova remains the favourite. She has looked good and sharp throughout the first week, but there are a number of players that have built their form to a point whereby they can challenge for the title in week two.

It was an okay week for the Brits

I thought Heather Watson showed what a great player she's potentially going to be. She was a little outclassed against Agnieszka Radwanska in the third round, but she deserves credit for the improvements she's made in the last 12 months. She's going to go from strength to strength because she's a great competitor and she'll look back at her career with no regrets if she keeps this up. Good for her. Meanwhile, Laura Robson played great against Francesca Schiavone and was a little bit unlucky at times.

All in all it was a decent tournament for the British girls, but you must remember they had decent draws as well. They made use of them and that's a plus point.

The roof and the players have done their job

The conditions have been some of the toughest I've ever known at Wimbledon. The wind has been horrendous; we've had bad days in the past but it's been consistently bad this week. I think that the quality of the tennis in those conditions has been amazing and it's a tribute to how great these players are that they have been able to produce so much entertainment. It would be nice if we could have seven days of summer so the guys and girls can try to produce their best tennis next week.

Everybody is grateful that the roof is here on Centre Court. It's been a huge bonus and we wouldn't have everybody through to the second week without it. It would be nice in the modern era if we could go past 11pm though. Wimbledon brings so much to the local area in terms of income and hopefully that curfew can be relaxed. Midnight would be an ideal solution.