Mario Balotelli will take the No45 shirt at Liverpool.
The former AC Milan striker put pen to paper on a Reds deal before last night's defeat to Manchester City.
It was confirmed immediately that the 24-year-old had selected the same jersey that he wore at each of his three previous clubs - Milan, Manchester City and Inter Milan.
Balotelli told Liverpoolfc.com: "When I first played three or four games with Inter Milan, when I was young, I had No.45 because the numbers for young players were from No.36 to No.50.
"I took No.45 because I was joking that four plus five is nine - and I scored in all four games. It brings me luck and that's why I've always kept No.45."
