Justin hopes to be a starter at Wembley today.
He said, "We're fully expecting to go there under pressure and we've got every chance of going through to the final, which is what we want to do.
"We've had good results against some big sides this season (including beating Chelsea at Elland Road) so nothing's out of the question. We're going there with confidence after the last couple of wins.
"They're obviously a top side with top talent. Hopefully, we can figure out a gameplan to push on their weaknesses."
This will be Justin's first appearance at Wembley, as he explained: "My England cap was away so I’ve never played at Wembley. So it’s an exciting prospect if I get selected.
"Everyone hears about how big the pitch is, how grand it feels, so I’m excited to get the chance to play on it."