Maria Sharapova (RUS) v Angelique Kerber (GER) - 1st on Centre Court
Held over after a rainy Monday in SW19, this fourth round meet sees German Angelique Kerber take on an in form Maria Sharapova for a place in the quarter finals. Fresh from her second French Open title, Sharapova is looking to add to her trophy cabinet, ten years since she broke onto the scene and lifted the Wimbledon title at the tender age of seventeen. But Kerber will be her toughest challenge yet. Sharapova leads their head-to-head 4-1 but Kerber has ventured deep into the tournament before, reaching the semi-finals in 2012. Whatever happens, don't forget your ear plugs - both Sharapova and Kerber are known for their high decibel screeching...
Roger Federer (SUI) v Tommy Robredo (ESP) - 1st on No.1 Court
On paper the unseeded Robredo should present little challenge to an in form Roger Federer but the seven-time champion has every reason to be wary of his Spanish opponent. Robredo dumped the Swiss fourth seed out of the US Open last September, winning his first in eleven matches between the pair. Can he do the same this afternoon? Grass is the Fed's preferred surface and he's being talked of as a serious contender to get his hands on Wimbledon trophy number eight. Robredo also needed five sets to see off Poland's Jerzy Janowicz on Saturday so Federer should be the fresher of the two.
Stan Wawrinka (SUI) v Feliciano Lopez (ESP) - 2nd on No.2 Court
Out on No.2 Court, this match promises to be a mouth-watering tussle between an in-form Lopez and fifth seed Wawrinka. The 32-year-old Spaniard has lost just one match on grass this season, succumbing to Grigor Dimitrov in the final of Queen's before lifting the Eastbourne title and becoming the first man to break John Isner's serve in yesterday's third round clash. Lopez eventually prevailed in four sets to set up his first grass meet against Wawrinka. The Swiss number two's game has stepped up a gear in 2014 - he finally tasted Grand Slam glory in Melbourne earlier this year. Can he inch one step closer to the All England Club trophy?
Rafael Nadal (ESP) v Nick Kyrgios (AUS) - 2nd on Centre Court
World number 144 Nick Kyrgios is having the sort of Grand Slam young players dream of. The tournament's dark horse only turned pro last year but the 19-year-old - noted for his Federer-style of play - is one of an exciting crop of Australian youngsters making their mark on the senior circuit. His run at SW19 has put him on the map but today is the biggest moment of his career - a chance to play his childhood hero Rafael Nadal. The Spaniard comes into Wimbledon with yet another Roland Garros title to his name but Krygios' massive serve and gutsy play will certainly present a challenge for the two-time champion. Expect an entertaining match...
Serena Williams & Venus Williams (USA) V Kristina Barrois (GER) & Stefanie Voegele (SUI) - 3rd on No.1 Court
The Williams sisters may be out of the singles tournament but they make for a formidable team in the doubles event. Between them they have 15 Wimbledon titles and their powerful style of play has been known to blow away opponents on the doubles court. The pair struggled through their opening match against Kalashnikova/Savchuk in three sets but, unless they're having an off day, don't expect the unseeded Voegele and Barrois to put up much of a fight.