For me there was three main shocks:

Juan Martin Del Potro: He is only 20 years old at the moment but is ranked number 5 in the world and is having a sensational year so far and at 6 foot 6 with a big serve you would imagine the grass of Wimbledon would suit him, but obviously not as former champion Lleyton Hewitt coming back from Hip surgery beat him in straight sets. It's not as big as shock as people may think though due to the fact Hewitt is a player with great pedigree at the SW19 Championships and Del Potro doesn't like the grass to much yet, but still to be beat so comprehensively makes this a very big shock.

Svetlana Kuznetsova: For me this is probably the biggest shock of the tournament in week one because she is a fairly experienced player on the women's tour having been playing for around 8 years now and what makes her defeat to Sabine Lisicki even more shocking was that she has just won her 2nd French open title against World Number 1 Danara Safina. The only possible explanation for losing to a non-seed such as Lisicki is that she just didn't adjust from clay to grass well enough but still this was a very big surprise.

Jelena Jankovic: Jankovic is another women who has played on the tour for quite a while now and has been a solid top ten womens' player for a good time. She was not really considered a major contender for the tournament but as the number 6 seed she was expected to make the 2nd week of Wimbledon as a minimum so to lose to unseeded qualifier Melanie Oudin was very surprising and this will go down as a big shock.

The first week of Wimbledon brought lots of great action.

Certainly American, Melanie Oudin's win over 6th seed, Serbian Jelena Jankovic was an amazing accomplishment for her - and for many a shock. She's only 17 and a rising player in the increasingly talented ranks of the women's tour - keep an eye out for her in the US Open Tennis Championships later this summer. She also had great success in Fed Cup for America earlier this year.