Arsenal boss Wenger unsure of Liverpool morale
"It is always a big disappointment to go out of the FA Cup," he said. "You never speculate because you never know exactly what kind of response you get. It depends on the team.
"What is important is for us to be at our best and cope with what Liverpool will offer us.
"Of course it's a shock when you go out but we just look at ourselves to play well together and don't look too much at how Liverpool will respond to that."