Joey Barton admitted he was "reckless and stupid" after being stripped of the QPR captaincy and fined six weeks wages for his sending off against Manchester City on the final day of the Barclays Premier League season.
The 29-year-old was hit with a 12-match ban and fined £75,000 by the FA last month after being dismissed for elbowing Carlos Tevez, then kicking out at Sergio Aguero as he left the pitch before aiming a headbutt in the direction of Vincent Kompany. Following their own internal investigation, QPR have now imposed further sanctions on the controversial midfielder.
Barton apologised in a statement on the club's official website, which he later expanded on in a series of Twitter posts, he said: "I was reckless and deserved every punishment I received. Money comes and goes, it's not important to me. Losing the captaincy and missing 12 games is what really hurts."
He added: "I was stupid and that what happens when u [sic] do dumb things. I am confident ill [sic] bounce back. Cannot wait.
"That's all I have to say on the matter. I wish to put it behind me now and help QPR, once available of course, push on towards the top half.
"Have a good day people. Thanks for all the lovely tweets of support. Speak soon xx."
Barton has a long history of controversy, both on and off the pitch. In 2008, he was given a six-month jail term after admitting assault and affray.
During his time as a player at Manchester City, Barton was fined after he stubbed a lit cigar in the eye of young team-mate Jamie Tandy during the club's Christmas party. Earlier this month, Barton was arrested for affray following a night out in Liverpool with his girlfriend.
In his official club statement, the player issued an unreserved apology, which read: "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."