Sheffield United striker Billy Sharp admits they'll be targeting David Luiz for their FA Cup quarterfinal against Arsenal today.

The Blades have taken four points off Arsenal in the league this season with Luiz, who could be back after serving a two-match ban for a red card at Manchester City, playing in both.

"He's a great guy actually, very talkative," says United striker and captain Sharp.

"'He is a very talented footballer as well, just he does make a few errors which cost him. Yeah, he does take chances, which is something we will try to create in our favour if he does play. He wouldn't be at Arsenal if he wasn't a good footballer but you need to gain an edge on your opponent.

"We know we can beat Arsenal, we have done it at Bramall Lane and picked up a point at the Emirates as well. We need to get in their faces from minute one.

"Maybe we go into the Arsenal game as underdogs but we think we can win if we raise ourselves five or 10 per cent."