1979–80 European Cup
The European Champions' Cup 1979/80 was the 25th edition of the competition. 33 club teams participated, including 32 national champions from the previous season and with Nottingham Forest, the defending champion. Finalort of the competition was the Madrid Estadio Santiago Bernabeu on May 28, 1980.
The participants played in the Cup mode with pure (except for the final) round-trip games for the crown of European club football. In Torgleichstand first counted the greater number of away goals scored; there was also this a tie, the second leg was extended and, if necessary, immediately then discharged a penalty shootout to decide.
Preliminary round
The first leg took place on August 29, instead of the return game on 5 September 1979.
First round
The first legs took place on October 3, 1979 September 19, the return games.
2nd round
The first legs took place on 7 November 1979 on 24 October, the return games.
Quarterfinals
The first legs were held on March 19, 1980 on the 5th, the return games.
Semifinal
The first legs took place on April 23, 1980 on the 9th, the return games.