The Reds concluded a deal to bring the Brazilian shot-stopper to Anfield last month after having been heavily linked with a new goalkeeper over the last few months.
Liverpool FC were thought to be on the lookout for some reinforcements between the posts after Loris Karius’ Champions League final nightmare against Real Madrid back in May.
Alisson will be expecting to hold down the number one spot at Anfield as he prepares for his first season at the Merseyside club.
And Kilbane feels that the Reds have completed one of the best pieces of transfer business in the summer window after having concluded a deal for the Brazilian.
Speaking in an interview with BBC Sport, Kilbane said: “Alisson is the signing of the summer.
“I have heard people say that they are one or two players short of a title-winning team but I don’t agree with that – there have been a couple of seasons over the past three or four years when they have been serious contenders but have been one short, and it was a keeper they needed.”
Liverpool FC will be aiming to be one of the main contenders for the Premier League title next season after the Reds finished in fourth place in the table last term.
The Reds are still looking to win their first major trophy since Klopp’s appointment as Brendan Rodgers’ successor at Anfield back in October 2015.
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