Crystal Palace and Watford will be hoping to join Manchester United in the FA Cup final.
They go head to head in their semi-final at Wembley at 4pm.
Palace will be hoping to book their place in their first FA Cup final since 1990 while Watford last made the final six years earlier.
United scored in the 93rd minute of their 2-1 victory over Everton in their semi-final at Wembley last night.
Anthony Martial netted the decisive goal.
The Merseysiders missed a second-half penalty.
Leicester will be looking to take a step closer to the Premier League title this afternoon.
But they'll be without top scorer Jamie Vardy for their trip to Swansea at 4:15pm.
Leicester are five points clear at the top with just four matches to play
Before that at 2:05pm, Arsenal can regain third place with a win over Sunderland.
Jack Wilshere could return for Arsenal at the Stadium of Light.
The midfielder hasn't featured this season after getting injured in August.
Meanwhile, Sunderland head into the game in the relegation zone, one point adrift of 17th-placed Norwich with a game in hand.
Elsewhere,
Liverpool defender Mamadou Sakho could be looking at a lengthy ban from football, as he's being investigated by UEFA over a possible drug test failure.
It's believed a fat-burner is involved, amid a sample taken following a Europa League game with Manchester United last month.
Team-mate Kolo Toure (pron: TWO-RAY) was involved in a similar situation when a Manchester City player in 2011, and he received a six-month suspension.
Sakho won't be considered for selection while the process is ongoing.
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A win today moves Celtic to within a point of the Scottish Premiership title.
If they beat Ross County, they'd be on 79 points.
Nearest challengers Aberdeen would make it to 80 points if they win all of their remaining games, but their goal-difference is vastly inferior to the defending champions.
Also this afternoon, bottom side Dundee United are desperate for a win against Hamilton.
Kilmarnock, the team above them, go to Inverness.
Hearts' hopes of a second-placed finish don't look too good following a 1-0 loss at Motherwell, while Dundee picked up a 2-1 win at Partick.
