While Sunday is all about the Old Trafford faithful saying farewell to Sir Alex Ferguson in his final home game in charge, and lifting the Barclays Premier League trophy, the 20-year-old has a big day for his own reasons as he is bidding to gain promotion to the top flight.
The on-loan defender helped the Foxes gain a 1-0 first-leg lead over Watford ahead of the return fixture at Vicarage Road this weekend. As the England Under-21 international continues to impress in the Championship, he is focused on attempting to complete the job against Gianfranco Zola's Hornets.
"Playing at Wembley would be massive," he told ManUtd.com. "I couldn't have imagined it a few weeks ago yet it could now become reality. It makes you so excited just thinking about it that I just want to work harder to make sure we get there. I don't want to get too carried away yet but it would be massive if we can get there.
"It was a big result for us last night," added Keane. "But it will still be really hard for us at their place.
"They have got a few good players coming back for that game so it's going to be difficult although I think we can still do it.
"We had a bad run but always felt we were capable of putting in good performances recently as I think we've only lost one in the last seven games.
"So we're in pretty good form, to be honest, and we're playing really well away from home.