"But in the second half and especially in extra-time we showed a bit of bottle.
"In extra time there was only ever going to be one winner and I was pleased with that.
Fulham now face a trip to The Reebok on February 19th for the fifth round tie against an in-form Bolton side.
"It won't be easy but I'm pleased that it's away from home to be honest because we play better away from home. As I say it won't be easy, but it's winnable," the Fulham boss added.