Leigertwood thinks his team should employ an attacking approach against Roberto Di Matteo's side on Wednesday evening.
"You can't go in to any games fearing teams or sitting back. You have to attack and put teams under pressure and I'm sure we'll do that tomorrow," Leigertwood told a press conference.
"We have pace in the side and strength up front with Pog (Pavel Pogrebnyak).
"We'll play with a high tempo and that will be good for us.
"We want to give a good account of ourselves and go there and win hopefully.