The Hammers return to Eastlands just four days after being knocked out of the FA Cup by Sven-Goran Eriksson's side and are determined to bury their disappointment and push for European qualification.

He said: "We were bitterly disappointed to be knocked out of the FA Cup by a team unbeaten at home in the league. It is imperative we do not lose this weekend.

"A win will see us close the gap on fourth place and keep tabs on the group of teams just ahead of us and of course keep us in the hunt for a European spot.

"We go into the game with a lot of confidence from the FA Cup performance and an attitude that seeks revenge."

West Ham were let down in midweek by their lack of creative attacking options, with Craig Bellamy, Bobby Zamora, Scott Parker, Nolberto Solano and Kieron Dyer all sidelined.

"It was a harsh lesson and it shows the need for us to score when we have dominant periods in a game," Lucas added on www.whufc.com

"We need to get that ruthless streak in us."