Javier Hernandez was again the hero for Man Utd as they beat Wolves, whilst Birmingham, Ipswich, Wigan and West Brom all progressed.
Man United, Birmingham, Ipswich, Wigan and West Brom all through
Javier Hernandez was again the hero for Manchester United as he came off the bench to score the winner in their Carling Cup fourth round clash with Wolves at Old Trafford.
The game had looked to be heading for extra-time, as Wolves twice battled back to level matters against the holders.
The opener had arrived on 56 minutes when Bebe claimed his first goal for United as his cross-cum-shot looped off George Elokobi and over Wayne Hennessey.
But Elokobi made amends just minutes later as he powered home a brilliant header.
United were back in front on 70 minutes as Ji-Sung Park drove forward and inadvertently exchanged passes with Federico Macheda before firing home.
Still Wolves were not finished as Kevin Foley slotted home, but United were not to be denied as Hernandez scored a brilliant individual goal as Sir Alex Ferguson's men broke with pace and the Mexican kept his cool to beat the advancing Hennessey.
League One
Brentford suffered heartbreak at St Andrews as they lost on penalties to
Birmingham City.
Brentford, who defeated Everton on spot-kicks in the last round, had looked like claiming victory in normal time as Sam Wood volleyed the Bees ahead after great work from Myles Weston and Charlie MacDonald.
But then with just seconds remaining, the evergreen Kevin Phillips slipped through to score a dramatic equaliser.
With no goals in extra-time the match went to a shoot-out, and Maik Taylor was the hero as he saved Craig Woodman's effort to hand City a 4-3 win on penalties.
Northampton Town's Carling Cup dreams came to and end with a 3-1 defeat at
Ipswich.
The Cobblers, who took the scalp of Liverpool in the last round, threatened another shock as Liam Davis fired home a wonderful opener for the League Two side on 16 minutes.
The lead, though, last just 10 minutes as Carlos Edwards fired home from an acute angle.
Town edged ahead before the interval through Damien Delaney , and victory was sealed with two minutes remaining when Tamas Priskin fired home.
Roberto Martinez ended the run of his former club
Swansea as his current charges
Wigan sealed a 2-0 win at the DW Stadium.
After a goalless first half, which Swansea enjoyed the better of, Wigan took the lead as Mauro Boselli latched onto Antolin Alcaraz's through ball and slotted home.
The second came in the final minutes after Andrea Orlandi had brought down substitute Charles N'Zogbia. Ben Watson stepped up to convert the penalty and send Wigan into the last eight.
West Bromwich Albion also eased into the quarter-finals with a convincing 4-1 win at Midlands rivals
Leicester.
The Premier League club's class told as Roberto Di Matteo got the better of Sven Goran Eriksson at the Walkers Stadium.
Simon Cox dinked the ball home to give the Baggies the lead on 21 minutes, but there was some hope for Leicester as they levelled just after half-time when Nicky Shorey put through his own net.
But West Brom were soon back ahead courtesy of a horrendous error from goalkeeper Conrad Logan as he allowed the ball through his grasp which gifted a goal fro Somen Tchoyi.
Steven Reid then headed a third before Cox fired home an excellent fourth to seal the win for the Baggies.
