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In page Alejandro Sabella:

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Sabella played for United until 1980, scoring eight league goals in 76 appearances. After relegation to the Third Division, manager Harry Haslam agreed a fee of £600,000 with Second Division club Sunderland.[2] However, Sabella had ambitions to play in the First Division and refused to go.[2] His final appearance for United came with a goal in the County Cup (a regional competition between South Yorkshire teams) Final victory over Sheffield Wednesday on 8 May 1980.[2]