- Tottenham beat Wycombe 4-3 in an FA Cup classic at White Hart Lane
- Chelsea deliver dominant performance to beat Brentford 4-0.
- Manchester defeated Crystal Palace 3-0, while Lincoln City kept their dreams alive with a 3-1 win over Brighton.
That's all she wrote for the 3 o'clockers. Lincoln City kept their FA Cup dream alive with a wonderful 3-1 victory over Championship outfit Brighton but Wycombe were denied a late upset by Tottenham, who battled back to beat the League Two outfit 4-3.
Chelsea produced an emphatic performance to defeat Brentford, as did Manchester City, who ran out 3-0 victors over Crystal Palace. There were also wins for Oxford, Rochdale, Middlesbrough, Burnley and Blackburn.
The action isn't over yet, though. Stick with us for live coverage of Southampton's clash against Arsenal at the St Mary's Stadium.
FULL TIME: Tottenham 4-3 Wycombe
An FA Cup tie that will go down as one of the competition's classics. Wycombe raced into a first half lead thanks to captain Paul Hayes but were pegged back by goals from Heung-min Son and Vincent Janssen.
Wycombe regained the lead thanks to Thompson's wonderful header, but late, late strikes from Son and Dele Alli deny the Chairboys an upset.
GOAL! Tottenham 4-3 Wycombe (Son)
Son works the ball from the left hand side and slots past Blackman to break Wycombe hearts. The drive takes a deflection off O'Brien and gets Tottenham out of jail. Credit to the Chairboys, who have given everything tonight.
Full time: Oxford 3-0 Newcastle United
FULL TIME - Chelsea 4-0 Brentford
An easy afternoon for Antonio Conte's men.
GOAL! Crystal Palace 0-3 Manchester City (Toure)
Toure adds gloss to the scoreline for City with a wonderful free-kick.
FULL-TIME - Burnley 2-0 Bristol City
GOAL! Oxford 3-0 Newcastle (Martinez)
Upsets everywhere this afternoon!
GOAL! Tottenham 3-3 Wycombe (Alli)
Alli drives into the box and places the ball expertly past Blackman. The Chairboys just couldn't hold on. Great composure from the England international.
GOAL! Lincoln 3-1 Brighton (Robinson)
The non-league outfit are in dreamland! Their FA Cup fairytale looks set to march on into the fifth round.
The Lilywhites are not best pleased. Less than five minutes to go.
GOAL! Tottenham 2-3 Wycombe (Thompson)
An incredible header from Thompson gives Wycombe the lead thanks to some excellent work by Weston, who delivered a sumputous cross for his team-mate to finish magnificently. Incredible scenes at White Hart Lane.
GOAL! Chelsea 4-0 Brentford (Batshuayi)
Batshuayi dispatches his spot-kick past Bentley after Ivanovic got in front of Egan, who can have no complaints. The Belgian has worked tremendously hard this afternoon and deserves his goal. Take note, Liverpool and Tottenham
GOAL! Oxford 2-0 Newcastle United (Nelson)
Pedro has really settled into life at Stamford Bridge. He has been replaced by Costa.
Trippier has had to succumb to injury and Tottenham are now playing with 10 men. Wycombe captain Hayes has also gone off; can his teammates capitalise on Spurs's misfortune?
Here's Janssen squeezing his penalty past Blackman. Wycombe now hanging on for a replay.
Diego Costa is set to come on for Chelsea, but his services are not needed. The Bees showed heart in the second half but Ivanovic's goal has put the game beyond doubt.
GOAL! Rochdale 0-3 Huddersfield Town (Hefele)
GOAL! Crystal Palace 0-2 Manchester City (Sane)
Silva feeds Sane who opens his body and shoots calmly past Hennessey. The Spaniard was afforded too much room and picked out the German international, who gives City full control.
Tottenham throwing the kitchen sink at Wycombe, who have replaced Akinfenwa with Weston.
GOAL! Chelsea 3-0 Brentford (Ivanovic)
The Serbian puts the game beyond doubt in what could be his last game for the club.
GOAL! Middlesbrough 1-0 Accrington Stanley (Downing)
Downing turns and shoots low into the left-hand corner to give the Teessiders the breakthrough.
GOAL! Rochdale 0-2 Huddersfield Town (Brown pen)