These games took place during October and November 1993 in the second qualifying round of the Champions League. It was a much smaller competition back then with only eight teams going through to the group stages.
The first leg finished 3-3 at Old Trafford. Man Utd raced into a 2-0 lead but then Galatasary drew level within 20 minutes before taking the lead in the 63rd minute. Eric Cantona scored a late equaliser for Utd.
http://www.youtube.com/watch?v=5TZoZW89cnc
The second leg will be ingrained in the memories of Man Utd fans forever. Players spoke of never having experienced such a hostile atmosphere before. The game finished 0-0 with Galatasaray going though on away goals and to compound matters Eric Cantona was sent off.