Andy Townsend
Ex-Republic of Ireland international on BBC Radio 5 live

It certainly hit a hand. Everyone in the ground recognised that straight away. Maybe Mr Clattenburg thinks the defender can't do anything about it?

Penalty?! No!

Derby sub Abdoul Camara has an instant impact with a mazy run into the area, his shot is deflected up and then onto the arm of Robert Huth, who clears.

Mark Clattenburg says no...

So we could be heading for a replay, a replay that neither team wanted.

Derby roll the dice one more time as on comes Abdoul Camara. 

Graeme Le Saux
Former Chelsea left-back on BBC One

Wes Morgan checks out into that space. He does well to redirect the ball. For once, Scott Carson isn't in the right position. It's a preventable goal.

Andy Townsend
Ex-Republic of Ireland international on BBC Radio 5 live

Great delivery, that is the key. First and foremost, you put it in an area where someone can attack it. Gray does that and Morgan does the rest with a big, powerful header.

Image source, Getty Images

We are five minutes away from an upset that is not particularly an upset and not even really that much of a surprise. In fact it was probably what we all expected.

Joshua Byers Warner: You can tell some of the Leicester lads are unfit! whoever is their fitness coach needs a talking to!  

Stephen MCP Brogarth: Becoming apparent that whoever gave Leicester 5,000/1 to win the league last year needs sacking. Should've been 10,000/1.  

Derby make a change, fresh legs up front. On comes Matej Vydra for Johnny Russell. 

Right then, after a stoppage for Tom Ince to receive some treatment we are back with the Leicester v Derby defence show. Can the champions force an equaliser? They have looked less threatening since they made all of their changes to be honest. 

Their shape is a bit muddled. 

Image source, Getty

A man dressed as what can only be described as a giant fox is consoling someone who I presume is his daughter, who is either asleep or just very upset. When fancy dress ideas go bad.

Anyway, there's still time to put a smile on a anthropomorphic fox's face. Just over 10 minutes in fact, call it 15 with added time. 

Ahmed Musa's first touch is a shanked shot from a mile out. Patience! 

Dave Wood: The top strikers adapt their games when defenders get wise to them. Vardy hasn't.  

Image source, Reuters

A third and final change for Leicester. On comes Ahmed Musa, who scored two in the last round at Everton. He could outsprint every domestic mammal in the UK, I reckon. 

Leicester up to two-thirds of possession in the second half, they've had six shots in 25 minutes but crucially haven't found a goal. It's a very watchable cup tie though. 

Andy Townsend
Ex-Republic of Ireland international on BBC Radio 5 live

That is a brilliant chance. Vardy should score there. It is perfectly placed for him, right on his head, but he puts it straight at Carson. Either side, it is a goal.

Image source, Getty Images

Goodness me Leicester have missed some chances tonight! Danny Drinkwater lifts a little cross in from the right, Jamie Vardy meets it maybe eight yards out, powerful header but STRAIGHT at the magnetic Scott Carson. Everything they hit is right at his chest. 

Image source, Reuters

You give me the chance to plug our live page on the Super Bowl a week on Sunday there AD. I think it was last year that Martin O'Neill and Roy Keane popped up. Bizarre.

Chance for Derby now, Tom Ince runs down the right, space opens up but his shot is screwed well wide. 

Image source, Reuters

AD Rite: honestly what is Leicester's gameplan? whack it 70 yards and hope for Vardy to get lucky? It's like watching NFL!?  

Andy Townsend
Ex-Republic of Ireland international on BBC Radio 5 live

Mahrez hasn't hit the heights of last season. He has given the odd glimpse of his quality. He was involved in some of the goals in Vardy's hat-trick earlier in the season.