Wimbledon 2012: Andy Murray and Serena Williams in Action on Day Six, Preview and Where to Watch Live

Yet another exciting day has finished at Wimbledon and there was almost another big upset on the men's side. Who would have thought Swiss master Roger Federer would almost lose in the second round on his favourite surface?

Day Five Round-up:

After the massive upset pulled off by Lukas Rosol (CZE) to eliminate Rafael Nadal (ESP)[2] on day four, there were concerns the trend might catch on among the other top seeds. Encouraged by Rosol's heroics, Julian Benneteau (FRA)[29] and Radek Stepanek (CZE)[28] almost gave the men's top seeds as much as they could handle on day five. Federer (SUI)[3] lost the first two sets but battled back to beat Benneteau 4-6, 6-7(3), 6-2, 7-6(6), 6-1, while Novak Djokovic (SRB)[1], who lost the first set in his match against Stepanek, ended up winning 4-6, 6-2, 6-2, 6-2. The duo are now the only remaining players in the top 16 in their half of the draw.

The seeded players that lost on the day five were Janko Tipsarevic (SRB)[8], Nicolas Almagro (ESP)[12] Juan Monaco (ARG)[15], Fernando Verdasco (ESP)[17] and Milos Raonic (CAN)[21].

On the women's side there were no major upsets and everyone expected to win did so, namely Maria Sharapova (RUS)[1], Agnieszka Radwanska (POL)[3], Kim Clijsters (BEL), Angelique Kerber (GER)[8], Sabine Lisicki (GER)[15] and Maria Kirilenko (RUS)[17].

Day Six Preview:

Nadal was supposed to headline the day six action but the exciting Spaniard is no longer part of the tournament. However, there is still some great tennis to be played on the day. Andy Murray, Serena Williams, Mardy Fish, Juan Martin Del Potro, David Ferrer and more will be in action on Saturday, looking to avoid a similar fate to that of the world number two. Here are the picks for Saturday's matches. Could more huge upsets be on the horizon?

• Serena Williams (USA)[6] v Jie Zheng (CHN)[25] on Centre Court at 1 pm BST

This will certainly be one of Williams' toughest games in the tournament. It's a rematch of the 2008 semi final, a tricky affair that Williams eventually won 6-2, 7-6 (5). Williams has the power to hit through Zheng but the American might have to run far more than she would want in this tie.

• Marcos Baghdatis (CYP) v Andy Murray (GBR)[4] on Centre Court

The home supporters will be fired up for this match. Baghdatis is an exciting player and will surely put up a good fight. Will Murray be able to cope with the pressure of being the odds-on favourite to reach the final?

• David Ferrer (ESP)[7] v Andy Roddick (USA)[30] on Centre Court

A Roddick win would be considered as an upset. And there is a very good chance of that happening, since the American is the better grass-court player and beat Ferrer at the US Open last year. The Spaniard won a grass-court tournament last weekend but Roddick has a good record on the surface and this could be a close match.

• Kei Nishikori (JPN)[19] v Juan Martin Del Potro (ARG)[9] on No 1 Court

After a breakthrough run to the Australian Open quarterfinals in January, Nishikori has climbed way up the ladder. The Japanese will give everything he has in this match and Del Potro will need to bank on his big serves to win this one. The two baseliners will battle hard throughout the match and the margin of victory is likely to be small.

• Maria Kirilenko (RUS)[4] Nadia Petrova(RUS)[4] v Serena Williams (USA) Venus Williams(USA) on No 2 Court

The pair, who has won 12 Grand Slams, will face a tough challenge against the Russian duo, team that reached the final of the French Open. Kirilenko and Petrova are opponents Williams sisters are likely to face in the late stages of London Olympics, so this match should serve as a good scale of their current shape to battle for a third gold medal together.

• David Goffin (BEL) [wildcard] v Mardy Fish (USA)[10] on No 3 Court

Goffin, who made history with his run to the fourth round of the French Open as a lucky loser earlier this month, has adapted well to grass-courts. Fish will need to be at his best if he is to stop the young Belgian from reaching the second week of a Slam again.

Where to Watch Live:

You can follow all the action live, from 11.30 am to 3.25 pm BST and from 5.50 pm to 8 pm BST, on BBC2. Live action will also be available from 1.45 pm to 6 pm BST on BBC 1. For country specific and broadcasting details and times, check out the BBC television programming Web site. You can also follow the matches live on Wimbledon's official Web site. Catch the highlights of Day Five from 8 pm to 9 pm BST on BBC 2.