The controversial Italy international officially completed a £16 million switch from AC Milan on Monday afternoon, and the mercurial Balotelli arrives with a reputation as one of the game's great mischief-making mavericks.
Opinion is divided on the move, with many believing the former Manchester City striker is unmanageable and not worth the hassle of trying to coax his undoubted potential out of him.
Brendan Rodgers has spent around £117 million on bolstering his squad this summer, and the signing of Balotelli is the club's marquee name to replace Luis Suarez who joined Barcelona for £75 million last month, and Wales international Allen can't wait to team up with the ex-AC Milan star.
The Liverpool Echo quotes him as saying: “He has that spontaneous edge to him. He’s going to give us a massive threat. It’s a signing that is another great addition."
“It’s credit to the club and all the staff who have worked so hard this summer to strengthen the squad on the back of a positive season. It shows our ambition to take that next step going forward."
“All the additions have settled in quickly. That’s been a big positive so far. They’ve brought plenty of pace and they are going to be a big threat for us throughout the year."
“Our squad has great balance now throughout, strength in depth and there is certainly going to be competition for places in every area. Top players like playing with top players. It brings out the best in people."
“It’s great to have competition throughout the squad. It spurs everyone on to improve and perform at their best.”
Balotelli is latest of nine arrivals at Anfield this summer, following the moves for Emre Can, Adam Lallana, Rickie Lambert, Javi Manquillo, Alberto Moreno, Lazar Markovic and Dejan Lovren, while Divock Origi will join the club next season once his loan stay with Lille is over.
Balotelli is expected to be in the squad that travels to Tottenham Hotspur this weekend, while former Southampton captain Lallana could make his debut following his return from injury.