The Reds are currently in Charlotte for the fourth stage of their United States pre-season tour, with AC Milan the next obstacle in the International Champions Cup on Saturday.
As every Kopite knows, there is history between the two sides, having met in the historic 2005 European Cup final at Istanbul and once again two years later.
There may be slightly less on the line on this latest occasion, which kicks off at 6.40pm local time and 11.40pm BST and can be watched live online by LFCTV GO subscribers.
Allen, however, is keen to test his skills against one of the heavyweight teams of the continent ahead of participating in fixtures of huge stature when the Champions League starts in September.
"To get the chance to play against teams like Milan is a brilliant experience," the Welshman said at a press conference from the Bank of America Stadium in Charlotte.
"There is obviously history between the two clubs in Champions League finals. I'm really looking forward to getting my first taste of Champions League football this season - it was a dream of mine and a target I had when I joined the club.
"I was hoping I'd get that chance. It's a club that belongs in the competition - and everyone would agree they are really looking forward to it getting underway.
"I've had two great years here. I've still been developing and have settled in really well. I had a taste of a successful season last season, really pushing at the top end of the table, which is where you want to be as a player.
"With the quality we've added in, I'm confident I can play a part in another great season for the club."
A 1-0 victory over Olympiacos and a penalties win against Manchester City have moved Liverpool into prime position to reach Monday's tournament final in Miami.
Asked about the hunger within the squad to top their group and book a place in the showpiece encounter, Allen responded: "Pre-season is all about getting ready in terms of fitness and getting that match time under your belt.
"At the same time, if there are games to be won and a competition to win, then that's what we want to do as players. We've come up against some great teams and the game tomorrow night is a chance to go one step further.
"Doing as well as we can and winning as many pre-season games as possible will hopefully give us a good start to the season."