Joey Barton is being stripped of the QPR captaincy and fined six weeks’ wages after his violent conduct during Manchester City’s title-winning match.
The former Blues midfielder was banned for 12 matches by the FA after being sent off for kicking Sergio Aguero, elbowing Carlos Tevez and head-butting Vincent Kompany.
The 29-year-old left his side struggling to secure Premier League football next season during a game which saw a dramatic injury-time winner from Aguero.
Following a full internal investigation, QPR said that if Barton again breaches the club’s disciplinary procedures his contract may be terminated.
CEO Philip Beard said: "It was important that we took our time to make sure we came to the correct decision, which I believe we have achieved.
“Joey’s behaviour, which led to his red card at Manchester City, and his subsequent actions were completely unacceptable and we have made our feelings on this matter known to him.
"I am really pleased with the way in which the Club and Joey have worked towards reaching a sensible conclusion and we fully believe he will respond to these sanctions in the correct manner."
Barton said: "My behaviour was wrong and I accept the punishment that has been imposed upon me as a result.
"I apologise to the Manager, my team-mates and of course the QPR fans for my actions. I also apologise to the Manchester City players, staff and supporters."
Barton joined QPR last August on a free transfer from Newcastle.