A fierce critic of the NFL , he blamed the league for his prolonged problems with drugs and alcohol .
Sweeney was among several Chargers fined by the league in 1974 for drug use .
A fierce critic of the NFL , Sweeney blamed the league for Sweeney 's prolonged problems with drugs and alcohol .
Sweeney was among several Chargers fined by the league in 1974 for drug use .