Arsenal beat West Brom on penalties
Arsenal beat the Baggies on penalties to set up Chelsea clash in Round Four.
Phil Medlicott Arsenal's winning streak continued as they defeated West Brom on penalties at The Hawthorns to book their place in the Capital One Cup fourth round.
Albion - whose first XI featured eight changes and their opponents' nine - had the best chances of the first half, with a Craig Dawson header being pushed over by Lukasz Fabianski.
There was also Steven Reid's free-kick, seemingly sent over by a slight touch of Fabianski's glove, although the goalkeeper argued he had not made contact, hoping to prevent a corner that was given nonetheless.
In terms of Arsenal's impact in the opening 45 minutes, perhaps the most notable was that of Nicklas Bendtner - making his first Gunners appearance since August 2011 - with a post when he failed to connect with an early cross, and debutant Isaac Hayden on Youssouf Mulumbu with a sliding challenge that saw the 18-year-old Gunner shown a yellow card which could have been red.
There was no question that Fabianski had produced a save, and a good one, to keep out Mulumbu's strike on the hour mark.
But a minute later Arsenal had the lead as Mulumbu lost possession, Bendtner slipped in Thomas Eisfeld and the 20-year-old German midfielder slotted in what was his first Gunners goal on his maiden start.
West Brom equalised in the 71st minute when Saido Berahino, scorer of a hat-trick in round two, headed past Fabianski from close range.
Baggies substitute Morgan Amalfitano hit the bar in extra time but the teams could not be separated over 120 minutes.
In the shoot-out, West Brom initially had the advantage after Luke Daniels saved Serge Gnabry's effort, but misses from Dawson and Amalfitano allowed Nacho Monreal to seal victory for the away side.
Arsenal, who have now won eight successive matches in all competitions, will host Chelsea in round four.
Manchester United's reward for overcoming rivals Liverpool is a home tie with Norwich in the Capital One Cup fourth round.
Javier Hernandez's strike early in the second half secured a 1-0 win at Old Trafford, which will play host to the Canaries the week starting October 28.
Birmingham ousted holders Swansea 3-1 and have been handed another home match in the last 16, this time against Mark Hughes' Stoke.
Despite tonight's heroics, the Blues are still considered rank outsiders to regain the title they won in 2011, with United amongst the favourites after drawing Norwich.
"Well, you always want a home draw if you can get it," manager David Moyes told Sky Sports 1.
"Norwich are a good side, they have got a good manager and we will give them every respect."
Elsewhere, Newcastle will welcome Manchester City to St James' Park after overcoming Leeds, while Hull travel to Tottenham just days after heading to White Hart Lane in the Premier League.
Managerless Sunderland play host to Mauricio Pochettino's Southampton, while West Ham head north to take on Sky Bet Championship outfit Burnley.
Martin Jol's Fulham travel to Leicester in search of a quarter-final berth in their tie, due to be played on October 29 or 30.