Federici he told the Reading Evening Chronicle: “To be the underdogs, play in front of 70,000 and almost sneak a 2-1 win is definitely a highlight of my career.
“It felt unreal. It was a great game for the neutral and a great feeling when the final whistle blew.
“For me personally it was another game under my belt against a massive team.
“Now we’ve got the replay to look forward to. Manchester United have to travel to us in midweek which won’t be nice for them. If we can frustrate them again perhaps we can get the win.”
Federici who will start the match against Manchester United, defended manager Steve Coppell’s decision to make several changes in the FA Cup.
He added: “It wasn’t meant to be disrespectful. There were some great players in our line-up and a lot of internationals. We really weren’t a second-string team like some people made out.
“We put in 100% effort on a soggy pitch and people were getting tired at the end.
“I made a couple of good saves but the one from Henrik Larsson was probably the best. I didn’t think I’d save it but I just got a finger to it. However, if I’m honest, he should have scored.
“But I genuinely thought we had a chance and we’ll have another go at them next week.”