Chelsea and Aston Villa will have to face off again in a FA Cup fourth round replay after a 0-0 draw at Stamford Bridge.

Douglas Luiz did have the ball in the net for the visitors but saw his first-half effort rightly ruled out by VAR for handball.

But it is Chelsea who will look back on a string of chances - many provided by Villa giving away possession - which they failed to capitalise on.

Villa keeper Emi Martinez certainly played his part in that, though, saving sharply from Noni Madueke and Cole Palmer in the first half and then keeping out Palmer again after the break when he had pinged a pass straight at the Chelsea forward. He was also sharp to beat Conor Gallagher to a bad Boubacar Kamara back-pass.

Djordje Petrovic was made to work at the other end as well, with two saves in quick succession to deny Ollie Watkins and Matty Cash, as both sides failed to come up with the clinical edge to force a breakthrough.

It means Chelsea - chasing a cup double after booking a place in the Carabao Cup final earlier this week - and Villa will be in the hat for the fifth round draw, which takes place at 2.10pm on Sunday.

How it happened...

With both teams naming strong starting XIs, this was a FA Cup tie which crackled in the first half - but turned into a stalemate after the break.

From that resulting corner Villa thought they'd gone in front. But VAR eventually ruled Douglas Luiz's goal out, with the Villa man clearly stretching out an arm as the ball ricocheted in the box.

That reprieve seemed to ignite Chelsea, with Martinez forced to deny Madueke before the goalkeeper spared the blushes of Clement Lenglet with an even better stop to prevent Palmer capitalising on the gift given to him by a misplaced pass in the Villa area.

Martinez was worked by his own defender Alex Moreno on the half hour, with Palmer's cutback almost accidentally turned into his goal by the Spaniard. Last ditch interventions from Cash and Ezri Konsa kept Chelsea at bay but Tielemans could have sent Villa in ahead at the break when he sent his first-time shot over the bar from the edge of the box on the stroke of half-time.

Palmer volleyed wide soon after the restart. However, with chances harder to come by in the second period, Pochettino turned to Ben Chilwell with 25 minutes to play. But it was Villa who created some of Chelsea's biggest chances, with Martinez firing the ball at Palmer, who couldn't connect cleanly as the ball dropped. Kamara almost played Gallagher in by mistake soon after.

Villa retained a threat themselves, testing Petrovic twice in quick succession, and ramped up the momentum in the final stages as they attacked their vociferous supporters. But they will now need to go again at Villa Park if they are to progress to the next round.

What's next?

Chelsea head to Anfield for a Premier League clash with Liverpool on Wednesday January 31.

Aston Villa host Newcastle on Tuesday January 30, also in the Premier League.