Listen to BBC Radio 5 live commentary of Sheffield United v Leicester
Eighteen second-round EFL Cup ties
274 changes made by teams across 19 games
Third-round draw in Beijing, China on Thursday at 04:15 BST
Too many changes?
Leon Osman
Ex-Everton midfielder on BBC Radio 5 live
West Brom are on a roll at the start of this season. These cup competitions offer a great opportunity and it's good to see Tony Pulis taking it really seriously. Leicester made lots of changes but still put out a really strong outfit. The problem comes when you make changes and lose the game.
Bolton 3-2 Sheffield Wednesday
An eventful end to this game as both managers are sent to the stands.
Into injury time.
Just two games left then and, amazingly, only one fixture is heading to extra time.
Bolton are currently beating Sheffield Wednesday 3-2 while Reading are drawing 1-1 with Millwall with just a couple of minutes remaining.
Fulham 0-1 Bristol Rovers
Grimsby 0-1 Derby
Accrington 1-3 West Brom
Aston Villa 4-1 Wigan
Birmingham 1-2 Bournemouth
Brighton 1-0 Barnet
Cardiff 1-2 Burton
Carlisle 1-2 Sunderland
Doncaster 2-0 Hull
Crystal Palace 2-1 Ipswich
Leeds 5-1 Newport
Middlesbrough 3-0 Scunthorpe
MK Dons 1-4 Swansea
Norwich 4-1 Charlton
QPR 1-4 Brentford
Sheff Utd 1-4 Leicester
Watford 2-3 Bristol City
Jordan Rhodes (85 mins)
Could this go to extra time? Jordan Rhodes, who not long ago gave the Owls what could have been a consolation, has scored again to give the visitors hope.
Birmingham 1-2 Bournemouth
Sheffield United 1-4 Leicester
Leon Osman
Ex-Everton midfielder on 5 live
Sheffield United put in a spirited display but have got bigger things to concentrate on. Leicester played well second half and this competition could be a great opportunity for them to win some silverware. No injuries, fringe players performing well - Craig Shakespeare will be pleased.
Too many changes?
Benjamin David: Not every team makes wholesale changes, West Brom put out a strong team tonight and reaped the dividends. Great display.
Thomas Hollern: They are all squad players ,the only thing disrespectful is calling them weak. They are in the squad and have the right to play.
Gavin Witt: Give Champions League places to FA Cup & EFL Cup winners rather than clubs happy to play for 4th - then see how seriously teams take the cups.
Brighton 1-0 Barnet
Brighton join their Premier League rivals Leicester in round three with a narrow win over Barnet.
Sheffield United 1-4 Leicester City
All over and Leicester ease into round three.
Watford 2-3 Bristol City
There's not enough time for Watford to get another and Bristol City are through! Great win for the Championship side.
Adrian Mariappa (90+5 mins)
They think it's all over? Not quite...
Adrian Mariappa gives Watford hope but there's seconds left...
Jordan Rhodes (76 mins)
Jordan Rhodes has tapped in at close range for Sheffield Wednesday. They've got less than 15 minutes of normal time to find another two goals and force extra time against Bolton Wanderers.
Ahmed Musa (90+3 mins)
Ahmed Musa puts the icing on the cake with a late fourth for his side.
Niclas Eliasson (90+3 mins)
Shock o'clock!
Bristol City are going into the third round as they grab a third, Niclas Eliasson with the goal.
Tom Trybull (90 mins)
A debut goal for Tom Trybull and Norwich City are heading through to the EFL Cup third-round in style.
Accrington 1-3 West Brom
The Baggies bounce through to the next round.
Ronaldo Vieira (88 mins)
Well that's that. Ronaldo Vieira scores Leeds United's fifth of the night and Newport County are heading out of the EFL Cup.
Jordan Ayew (86 mins)
A fourth for Swansea as Jordan Ayew sweeps home. Job done.
Watford 1-2 Bristol City
It gets worse for Watford as they are reduced to 10 men. Jose Holebas, on a booking, loses the ball and clumsily swipes the feet of a Bristol City player as he tries to get the ball back. Second yellow and off he goes.