 Days later, on deadline day in March 1974, he left Wolves to join Manchester United for £60,000.United were then struggling near the foot of the First Division, and although McCalliog soon made his mark with three goals in three wins, the club were relegated at the end of the season.He played enough games in the following season to win a Second Division championship medal but had been sold by manager Tommy Docherty before the season's end to Southampton for £40,000.