Federici played a full game in goals as the Royals were beaten at the final hurdle 4-2 by Swansea City in Monday's game at Wembley Stadium.

The 26-year-old custodian, who will now link up with the Socceroos ahead of the New Zealand friendly on Sunday, said the Royals would be ready for automatic promotion next season.

"We don't want to be here again next season, we want to be going up automatically,” Federici told the club's website.

“We've got a great manager and a great system. Everything is ready to go again next season."

Federici added: "There are going to be loads of positives from this when we look back at it. And we can only get stronger as a team.

"All season we've been hard to beat. I just think we've just got to be a bit more consistent at the start of the season.

"We've got a good squad here, one of the best in the league. Hopefully we'll continue our good run of form at the end of this season into the start of the next.

"I'd love to play in games like this every day. The atmosphere, the pitch, everything that comes with the big occasion.

"It's something we all want to be involved in and that's why it hurts so much right now. We were so close and yet so far away."

Swans smashed in two goals inside the opening 25 minutes and Federici cited that as his side's downfall in the play-off final.

"You try to put the occasion to one side and play the game. But I think we were the slower team to do that,” Federici said.

"We were our own downfall today. If you give a team like that possession and time on the ball, they'll score goals.

"And they played some terrific football and finished very clinically. They've got some great, very quick, attacking players, and we were a bit sloppy in the first half.

"They got in behind us and our mistakes cost us. But you've got to hold your hands up and say well done to Swansea. Credit to them, they deserve to go up. I'm sure they'll do well next season."

The Royals fought back after trailing 3-0 at the break, bringing it back to 3-2 before Scott Sinclair's late penalty sealed the deal for the Swans.

"We waited all season for an opportunity like this. And we all desperately want to be in the Premier League, so it's gut-wrenching,” Federici said.

"We played with our hearts on our sleeves in that second half and that's why it hurts so much now.

"We came in with our heads down at half time. But we knew it wasn't over and we came out firing in the second half.

"We gave it a good go in the second half. We were very unlucky not to get that third goal - it must have been millimeters away. It would have been very interesting then.

"But their second penalty came at a good time for them - that killed us. Before that I would have backed us to get back into it."