Speaking to the Football League website, the Scouser said: "The Ricoh will be rocking and I'm really looking forward to the game.
"You always want to test yourself against the best and we've certainly got the chance to do that on Saturday. Chelsea are a team of world class players, they play in Europe as well as the Premiership every year and it's going to be a very tough test for us.
"It will be the biggest game of my career and I know that me and the lads will have to be on blob for the whole 90 minutes. But if we get a good start and then play the way we have done in recent weeks, there's no reason why we can't beat them.
"Just look at Barnsley last season - nobody expected them to beat Chelsea in the FA Cup, but they did it and we can take inspiration from that. And we'll have great backing from the fans - the atmosphere in the ground will be brilliant and the fans will be a big help.
"It was a bad day at the office on Wednesday, we didn't have that edge about us that we've had in recent weeks. We let our standards slip and that cost us, and we've got to get back to the level we've been playing at straight away.
"We certainly won't be able to play like we did on Wednesday against Chelsea, because if we do it will be a totally different scoreline. So we have to make absolutely sure we're ready for them - and I'm absolutely sure we will be."