 Complete the following phrase:  The rivalry between the two sides carried on at full force throughout the rest of the 1960s and the 1970s. Leeds achieved both domestic and European success, winning the First Division title in the 196869 season and the 197374 season, as well as finishing runners-up five more times, and never finishing outside the top four places whilst Revie was at the helm. Leeds earned a feared reputation for toppling European sides, including the likes of Juventus, Barcelona, Napoli, Anderlecht and Valencia; in doing so they became Inter-Cities Fairs champions twice and once runners-up, and controversially came runners up in the 1973 European Cup Winners Cup Final and 1975 European Cup Final. Leeds new domice was highlighted by the fact that in 1970 they came close to achieving an historic Cup Treble, however they finished runners up in both the league and FA cup, and were knocked out of the European cup at the semi-final stage. During this period Manchester United only won the league once, in the 196667 season, and were at the end of several defeats inflicted by Leeds, including a 51 defeat at Elland Road in 1972, they were relegated in the season Leeds became champions in 1974. However they had other successes, including winning the European Cup in 