Join the debate at #bbcfootballpublished at 17:24 Greenwich Mean Time 24 January 2015
Guy Mowbray
BBC Match of the Day commentator
"Very very impressed with Middlesbrough. Might be making the trip to the Riverside a lot more often next season..."
2-0 to 2-4: Bradford knock out Chelsea
Man City beaten 2-0 by Middlesbrough
Tottenham lose at home to Leicester
Fulham take 10-man Sunderland to replay
Watch best moments via highlights tab
Gary Rose, Tom Rostance and Mandeep Sanghera
Guy Mowbray
BBC Match of the Day commentator
"Very very impressed with Middlesbrough. Might be making the trip to the Riverside a lot more often next season..."
Matthew Johnson: It's been some afternoon #getcarriedaway
Send in your opinions on or photos from today's action and talking points to #bbcfacup, external on Twitter, text us on 81111 (UK only), or drop us a line on the BBC Sport Facebook, external or Google+ page., external
Chelsea 2-4 Bradford City. They'll be talking about this one for years and you can watch highlights from one of the biggest FA Cup shocks in history by clicking on the highlights tab at the top of this page.
Bradford City co-chairman Mark Lawn, speaking to BBC Sport: "We've just beaten Barcelona. We've just beaten a team that is as good as Barcelona. Wait until you see the fourth goal, you'll think we were Chelsea! It just goes to show Match of the Day should have us on telly all the time, because we score you goals. This game meant we broke even. We had a million pound overspend this season. Let's have Manchester United in the next round now.
"Phil Parkinson inherited the worst squad we have ever had when he started here. I've been watching the team since 1964. When he came in we told him this is the worst team we've seen up here. His first job was to keep us in the league but we have had steady progress since then."
Wycombe stay top after eking out a goalless draw at Mansfield, a point ahead of Shrewsbury, who saw off Stevenage 3-2 thanks to a late winner from Jim Collins. Adam McGurk rescued a point for Burton, who drop to third after a 1-1 draw at York.
What a weekend of FA Cup football so far. And it goes on!
Liverpool make five changes. Full-back Glen Johnson makes his first appearance since the 3-0 defeat by Manchester United in December, having recovered from a groin injury.
Midfielder Joe Allen picked up a knee problem in the same game and returns to action, while Adam Lallana, Jose Enrique and Javier Manquillo are also included in the starting XI. Captain Steven Gerrard is not in the matchday squad.
Bolton's former Liverpool striker Emile Heskey starts up front, with Trotters stalwart Eidur Gudjohnsen in support.
Liverpool: Mignolet, Johnson, Can, Sakho, Manquillo, Allen, Henderson, Enrique, Coutinho, Lallana, Sterling
Bolton: Bogdan, Moxey, Mills, Ream, Dervite, Vela, Danns, Pratley, Feeney, Gudjohnsen, Heskey
Jonathan Overend:, external Phil Parkinson tries to take it all in live on BBC Radio 5 live.
More from Chelsea boss Jose Mourinho: "What happened is football and football is beautiful. I think this is the beauty of football where a much better team can lose, which is difficult to happen in another sport and more possible to happen here in this country and this sport.
"The small team mentality is special. My respect goes to that and to them, they did a fantastic history for them and their club.
"I repeat a word I used before this match - It's a disgrace for a big team to lose to a small team from a lower team. We must feel ashamed, me and the players must feel ashamed. Frustration is not the right word, embarrassed would be more appropriate."
From 17:15 GMT you will be able to watch the goals from this afternoon's thrilling FA Cup action online.
Trust me, you won't want to miss them.
Jose Mourinho has been into the Bradford dressing room to congratulate every player. You have to say his reaction to the defeat has been first-class.
MK Dons reduce the gap on Swindon and Bristol City - who both didn't play today - and are third after a 2-0 win over Barnsley.
Yeovil are off the foot of the table after a goalless draw at home to Coventry City, while Crawley are propping up the division after losing 1-0 at Fleetwood Town.
Chelsea manager Jose Mourinho, speaking to BBC Sport: "I don't feel so upset with myself because I did my work properly. I thought I prepared my players. At half-time I told them exactly what could happen. Obviously I am also responsible for that, but the reality is that this happens a lot of times in this country.
"Never to me. It is the first time it happens with me in English football. I can feel really happy for them. I was in that dressing room but at the same time I use the same word I used yesterday. It is a disgrace we were knocked out."
What you all wanted to know - Emile Heskey starts at Anfield.
Middlesbrough manager Aitor Karanka, speaking to BBC Sport: "I can't find words to explain my feelings today. But I'm proud of the players, the crowd, the fans, the staff and the club. They had a lot of chances to score in the first half and I was concerned, because they have a lot of quality. They always have an attacking threat, and it was our third game in a week. We could have won by more because we were very well organised and have quality up front. But it wasn't bad, 2-0.
"We played Liverpool in the Capital One Cup and played very well. Against an amazing squad with a very good manager. We were very organised, and when we are organised, we have the quality up front to win games."
Jose Mourinho confirms his view that "It is a disgrace" for his side to lose today. "We must feel ashamed," he says.
Full reaction to come.
James Shipp: Well if Gerrard wants to go out with a bang on his birthday, he's not going to get a better shot at it.
Send in your opinions on today's action and talking points to #bbcfacup, external on Twitter, text us on 81111 (UK only), or drop us a line on the BBC Sport Facebook, external or Google+ page., external
Chelsea manager Jose Mourinho is asked what happened.
"What happened? Football. And it is beautiful."
Tom, London: To Brandon, Bradford at 15.58. Don't think you're ever going to live that comment down! I hope you're a Bradford fan at least.
For the record, Brandon said: "Honestly think the worst thing Bradford could have done before half-time is score. Chelsea will now be urged to find blood in the second half."
Middlesbrough striker Patrick Bamford, speaking to BBC Sport: "Everyone's making a big thing of the fact that it's the first time I've been back here since I won two tickets for a Bon Jovi concert two summers ago. But I've enjoyed it today."
Bradford players still out on the pitch - soak it up boys! Soak it up.