Under strength Newcastle send City out
Silva forced off with injury in defeat
Lamela and Kane on target in Spurs win
Saints knock out Stoke in five-goal thriller
The shackles are off and Tottenham are looking much more confident after Erik Lamela's opener as Robert Soldado smashes a shot against the frame of the goal. The hosts are in control, and you a sense there are a few more goals to come.
Charlie Adam and Peter Crouch enter the fray in place of Bojan and Geoff Cameron. Stoke need something if they are to reach the quarter-final stage for the second year in a row. Bojan will rue missed opportunities as the Spaniard blazed over shortly before being withdrawn.
The holders are worried now. Sergio Aguero comes on for Samir Nasri, who was a first-half substitute himself. The Frenchman lasted 60 minutes on his return from injury.
Danny Mills
BBC Radio 5 live at Etihad Stadium
"Alan Pardew is furious. It was a brilliant ball by Sammy Ameobi but I think Kolarov gets the ball. I think that's a fabulous tackle and the referee Stuart Attwell has got it right."
Image source, ReutersA game-changing moment? Gabriel Obertan races through on goal and is wiped out by Aleksandar Kolarov's lunging tackle. For my money, City have got away with one...
Image source, Getty Images
Jermaine Jenas
Former Tottenham midfielder on BBC Radio 5 live sports extra
"That was absolutely brilliant. They played a beautiful one-two and fair play to the lad he finished it beautifully. He keeps doing it in the Premier League and Europa League."
Image source, Getty ImagesFinally the breakthrough, and it was a lovely worked move as Robert Soldado and Erik Lamela exchange passes, allowing the latter to weave into the area before sliding a shot beyond young Christian Walton.
Image source, Getty ImagesPeter Collins:, external This has been great from Newcastle. Players playing for the club and manager. What crisis?
Former Stoke City defender and 1972 League Cup winner Denis Smith on BBC Radio Stoke: "Stoke look the most likely. It's an even game really but if I had to pick on team to get the next one it would be Stoke."
Andy, Birmingham: Re. 20:58. Imagine if it was standard protocol to include player's middle names when live match reporting. Guidetti would push you over the edge...
What? John Alberto Fernando Andres Luigi Olof Guidetti. Almost as long as Warnakulasuriya Patabendige Ushantha Joseph Chaminda Vaas.
Jermaine Jenas
Former Tottenham midfielder on BBC Radio 5 live sports extra
"I keep saying it, that is what Tottenham need to do, get the ball wide and get crosses into the box. Brighton are so compact in the middle of the pitch that if a goal is to come, it will be from out wide. Harry Kane was inches away then."
Chance for Spurs - Harry Kane heading Kyle Naughton's decent cross wide. Brighton hanging on a little now.
Mehdi Abeid is down injured on the Etihad turf after being practically clothes-lined by Eliaquim Mangala. That hurt. All arms and legs is Mangala.
Both sides are having their moments at the Britannia and each has forced a couple of corners. Southampton remain in the lead, though.
Image source, PAYaya Toure is hooked off, replaced by Jesus Navas. Aleksandar Kolarov takes up the captain's armband.
Tottenham have made a half-time change - Erik Lamela replacing Aaron Lennon.
Just over half an hour to go at the Etihad and Newcastle have every man behind the ball now. Edin Dzeko takes a pop from outside the area but Paul Dummett charges the effort down.
Mark Clattenburg gets us back under way at the Lane. Can Brighton hold on and nick one?
Danny Mills
BBC Radio 5 live at Etihad Stadium
"Newcastle need to get through these next eight minutes because you make milestones get to 60 minutes, 70 minutes. They need to get through these sections.
"The last thing Man City would want, with the derby coming up, is extra-time. City have been sloppy, lax and too casual at times."
Image source, Getty ImagesAsadur Rahman:, external If Newcastle win this I vote Alan Pardew for manager of the the month.