Well that is all we have time for on this live blog. But don't go anywhere as we still have three games which have entered extra time. An additional 30 minutes will be played at Bournemouth, Wolves and Burnley, and you can follow the twilight of the matches here.
Full time: Reading 0-2 Swansea
A much-needed win for Paul Clement's men as they double their goal tally for the season in beating Reading to reach round four. Alfie Mawson scrambled one home from a corner before Jordan Ayew struck on the break after a Reading attack was stopped by the ball striking the referee.
Full time: Tottenham 1-0 Barnsley
Not the most memorable evening but Spurs get the job done and are into the fourth round. Dele Alli scored the goal and downed Championship Barnsley, who worked hard but struggled to create enough clear-cut chances.
Seventeen-year-old Tashan Oakley-Boothe on for Dele Alli in stoppage time at Wembley. What a moment for the teenager.
Four added minutes at the Madejski.
Barnsley are huffing and puffing but not offering a great deal at Wembley. Tottenham have closed the game down since Dele Alli's goal. The Premier League side look like they're edging through.
Swansea celebrate going ahead in the first half.
GOAL! Reading 0-2 Swansea (Jordan Ayew)
Swansea are heading through to the fourth round but this goal with wrangle with Reading supporters. A Royals attack is halted as a cross-field pass hits referee Andy Davies. The Swans collect possession and with the Championship side having thrown players forward they are sitting ducks, and substitute Ayew cuts inside and thumps into the corner. The home faithful are not happy.
Not much happening at the Madejski to be honest. Reading not playing like a wide who need a late goal to force extra time or to spark a comeback. Swansea pretty comfortable.
How has Wilfried Bony missed there! Ayew drives the cross in and Anthony Jaakkola palms the ball against the Ivorian and the ball rebounds wide. Should be two.
Good bit of context behind tonight's attendance.
Georges-Kévin Nkoudou on for Tottenham. Glad someone remembered where he was buried. Time to kick-start his career in England.
Dele Alli slides Tottenham ahead in the second half.
Attendance at Wembley this evening is 23,926. The magic of the cup.
GOAL! Tottenham Hotspur 1-0 Barnsley (Dele Alli)
The deadlock is broken at last as Trippier beats his man and crosses for Dele Alli, who slides the ball home after 65 minutes. The relief is almost tangible around Wembley.
First nervy moment for Barnsley in this second half. Kieran Trippier is at the centre with a fine cross towards Llorente and when he can't make contact, Winks cuts the ball back and Davies makes the block.
Wayne Routledge storms into the Reading box but via Ilori and Jaakola the ball is put behind for a corner. Jaap Stam's side have offered nothing since the goal after being very competitive in the first half.
Tottenham's fans are growing a little restless as we approach the hour mark at Wembley. Barnsley have grown in confidence as this game has progressed and can even claim to have had the better chances. A cup-set is certainly on.
GOAL! Reading 0-1 Swansea City (Alfie Mawson)
Finally we have a goal at the Madejski and it comes for the Premier League side. Mawson meets a corner at the near post and his volley hits Chris Gunter and bounces into the net. Not an own goal I don't think, but Gunter made a hash of trying to clear the shot.
No shots on target in the first half at Wembley, but we get one inside 15 seconds of the second period as Ugbo takes aim with a thumping volley from 30 yards which Vorm pushes over the bar. On loan from Chelsea, is the Barnsley forward.
Back under way at the Madejski Stadium.
The only punishment stemming from that clash at the end of the first half was a booking for Bacuna. Very much handbags.
Half time: Tottenham 0-0 Barnsley
Spurs have dominated the game but are yet to have a shot of target. Otherwise, it has been pretty dreary for the most part. Not my favourite game of the season.
Half time: Reading 0-0 Swansea City
Some incident at last and it comes after the half-time whistle has gone. Liam Moore is involved as is Wilfried Bony it appears as a scuffle breaks out by the tunnel. The referee has held talks with his assistant and we await to hear the outcome of that.
No attempts on target from Tottenham's 10 on goal this evening. Barnsley have been pretty comfortable, if not always in control.