Summary
Man Utd will play Everton in last four
West Ham have late goal disallowed for offside
West Ham XI: Randolph, Antonio, Tomkins, Ogbonna, Cresswell, Kouyate, Noble, Valencia, Lanzini, Payet, Carroll
Man Utd XI: De Gea, Fosu-Mensah, Smalling, Blind, Rojo, Carrick, Fellaini, Lingard, Herrera, Martial, Rashford
Postpublished at 17:56 British Summer Time 13 April 2016
Watch and listen on the BBCpublished at 17:53 British Summer Time 13 April 2016
I'm currently watching Gary Lineker prepare for tonight's game which means one thing - this tie is live on the telly.
Of course, this day and age means you can also watch online on your desktop, tablet or mobile and listen to commentary on BBC Radio 5 live. Options galore.
You can watch MOTD Live online and on BBC One (BBC Two in Wales) from 19:00 BST and if you are following online you can also choose to listen to 5 live commentary while watching MOTD coverage.
Favourite football ground memoriespublished at 17:47 British Summer Time 13 April 2016
Get involved #bbcfootball
As we prepare to say goodbye to Upton Park, why not tell us your favourite football ground memories?
West Ham fans, tell us some of your most memorable Upton Park moments and for fans of other teams, tell us your tales of stadiums past and present. Ever had an affinity to a particular seat? Witnessed an amusing moment?
My favourite memory was walking into Huddersfield Town's Leeds Road stadium for the first time and hearing the noise from the Cowshed. Electrifying.
Tell us your favourite football ground memories on Twitter via #bbcfacup, external text in on 81111 (UK only) or post a comment on the Match of the Day Facebook page.
Half-and-half scarves OK tonightpublished at 17:45 British Summer Time 13 April 2016
WEst Ham v Man Utd (19:00 BST)
Conor has zoned straight in on the half-and-half scarf here.
In fairness, this is the one time I'll make an exception to one of football's greatest crimes. With this being the final game at Upton Park, a scarf marking such an occasion is a decent memento.
Postpublished at 17:39 British Summer Time 13 April 2016
West Ham v Man Utd (19:00 BST)
Image source, Getty ImagesUpton Park. It has been West Ham's home for 102 years - going right back to a time when footballers were cross-armed and wore woolly jumpers for photos - but the time to move on is approaching.
The Hammers are due to uproot to the Olympic Stadium at the end of the season and everyone connected with the club will be determined to bow out on a high.
Manchester United, though, will be out to spoil the party. The FA Cup is the Red Devils' last realistic chance for silverware this season, while pressure is mounting on Louis van Gaal.
The stakes are high and we're sure to be in for a cracker.
Upton Park's FA Cup farewellpublished at 17:30
14 February 1972: West Ham 3-1 Hereford
Image source, Getty Images11 March 1991: West Ham 2-1 Everton
Image source, Rex Features13 January 2015: West Ham 2-2 Everton (aet - 9-8 on pens)
Image source, Getty ImagesUpton Park has played host to some memorable FA Cup ties over the years.
But, after witnessing 154 games in the competition, FA Cup football will be played within the stadium for one final time tonight as the Hammers take on Manchester United.
With a place in the semi-finals at Wembley at stake, could the historic venue witness one final FA Cup classic before the doors are closed for good?