They Called Him Bulldozer
Bud Spencer: "Sie nannten ihn Mücke" - Trailer (1978)
The "Bulldozer", a former football star, is now working as a fisherman. As a group of street-people arranges a football match against the local Armybase, he is asked to be their trainer. His boat was damaged by a submarine and he currently has no work, so he agrees.