The following season, Celtic won the League and League Cup for the third season in a row. In 1969 they won another domestic treble, their second in three years. In 1970, Stein led Celtic to a League and League Cup double; they also finished runners-up in the Scottish Cup. He also guided them to their second European Cup Final, knocking out Benfica and Leeds United en route, but they lost to Dutch side Feyenoord in Milan. Around this time, Manchester United made efforts to persuade Stein to join them as manager. Stein declined their advances, a decision he later told Alex Ferguson that he regretted.