Liverpool haven't responded to that goal just yet and Chelsea probe away in the final third for another, potentially decisive, strike. The Reds look shellshocked.

Tokunbo:, external Chelsea leave us hanging for 90 minutes, then score in the 3rd minute of extra time.

Aidan Williams:, external That goal changes nothing. Liverpool don't score then they lose.

Feroze Hussain:, external Chelsea don't have a good record of protecting 1-0 this season.

BBC Radio 5 live Danny Mills at Stamford Bridge

"I think Balotelli was stood next to Ivanovic and just left him. It's a lapse in concentration - sometimes you bring centre forwards back, they get sucked towards the ball and don't concentrate on the job in hand. But why was Balotelli in the middle of the goal picking up? You've got to have Can or Skrtel in there."

A massive blow for Liverpool, but does it change too much? They still need to score. If they do so without further reply, we're heading for penalties.

Image source, Reuters

The deadlock is broken. And it's that man Branislav Ivanovic who does it again - the big defender rises highest to head home a Willian free-kick.

Image source, Getty Images

Conor McKeekin:, external Not wanting to tempt fate but Kurt Zouma has been top quality tonight!

Darren Bent - on loan from Aston Villa - now has three goals in three games for Derby County.

His second has sealed their win over Blackburn and the three points will put Derby level with Bournemouth at the top of the Championship, though the south-coast club have superior goal difference.

Millwall and Reading, and Sheffield Wednesday and Birmingham City have played out goalless draws while Rotherham move clear of the relegation zone with a 4-2 win over Bolton.

Image source, AP

Liverpool on the attack then and Philippe Coutinho and Raheem Sterling work an opening for Mario Balotelli on the edge of the box. Row Z!

BBC Sport chief football writer Phil McNulty at Stamford Bridge

"No complaints from the neutrals about another 30 minutes from Chelsea and Liverpool - a high pace game of great quality. Unsavoury moments and contentious decisions but an enthralling spectacle."

Extra time is under way.

BBC Radio 5 live Danny Mills at Stamford Bridge

"Both teams have been at it hammer and tongs. Both will now start to get tired, and that plays into Chelsea's hands, because they don't have to score. It's up to Liverpool to come forward, and with that back three, you worry they could get exposed."

Remember, if there are no goals in extra time... Chelsea are through on the away goals rule. Liverpool must score.

Some of the Chelsea players do stretches on the outfield. It's been a taxing evening.

Majid Mumtaz:, external As soon as 90 minutes are gone Liverpool will get under pressure more and more.

Ruairidh Anderson:, external Have to say, for a 0-0 that was ridiculously entertaining.

North London Is Zed:, external Can you have a fantastic game without a goal and a referee? Absolutely!

Television cameras pan around a Liverpool huddle. Brendan Rodgers crouches and delivers his instructions, while looking a little red in the face. Mario Balotelli knocks back some water.

Walsall are heading to Wembley at the expense of Preston North End. They have played out a goalless draw at the Bescot Stadium but the Saddlers lead 2-0 from the first leg.

They have never played at the home of English football before.

Injury time being played....

Image source, Reuters

Put the kettle on and dig out the emergency biscuits. We've got another 30 minutes ahead of us. What a game!

Corner comes to nothing. Still Chelsea attack. Oscar dances into the box but Emre Can is there. Nemanja Matic cross evades everyone.

The clock's ticking towards extra time. Chelsea pin Liverpool back. Nemanja Matic shot deflected. Corner.

Four minutes of injury time. Corner comes in. If Mario Balotelli's mohican had been an inch taller, he'd have got to that. Instead it runs to safety. Now Chelsea attack.