The ex-Brisbane and Melbourne Victory striker had been linked with multiple clubs including Victory, cross-town rivals Melbourne City and Wellington Phoenix after his contract with Japanese team Hiroshima Sanfrecce ended.

However The Age reported on Friday the 34-year-old had opted to join Mark Rudan's team for the upcoming season.

Berisha, an Albanian and Kosovo international, scored 116 goals in 186 A-League appearances for the Roar and Victory.

He is a two-time golden boot winner, four-time A-League champion and won the 2015 FFA Cup with Victory.

Berisha will link up with ex-Socceroo Scott McDonald in an experienced strike partnership for United, who kick off their inaugural A-League campaign away to the Phoenix on October 13.