Darren Ambrose believes Crystal Palace can pull off a shock win over Aston Villa in their FA Cup fifth round replay tonight.

The Eagles were three minutes away from a famous win when the sides met at Selhurst Park 10 days ago but were undone twice by headers from set-pieces.

Ambrose, who scored a sensational free kick in the first tie, is confident that if they can defend those free kicks better this time then the Eagles have a strong chance of winning.

"Their set pieces at Selhurst Park were the thing that destroyed us so we have got to be aware of that," he said.

"We know we can give them a good game and as long as we stop what they are good at I think we will be alright.

"We know what they are about now, they have got late runners coming in that if they get good contact it's going in."

Victory would set up a winnable quarter final tie against West Brom or Reading, but Ambrose insists the team are focussed only on tonight.

"When the draw was made we had just almost beat Aston Villa at home so we were thinking that would have been a good tie to have gone in to and we would have been confident of getting a result out of that," he said.

"But that's all gone now, we are not thinking about that.

"We are concentrating 100 per cent on Villa."