Tevez will at the end of the season have reached the end of a two-year loan deal at Old Trafford.
He said: “I am very sad about this but I guess what I’m saying is goodbye.
“I don’t think I will be a Manchester United player next season. I have done everything I possibly can but they have never made me an offer or given me a contract so I have to leave.
“I think I will be at another club next season.
“I have not been treated as a member of the family. I do not feel wanted. I feel bad over my situation, I do, but it’s very, very difficult to stay any longer.
“The fans treat me like family but United have not signed me so they do not respect me as a footballer.”
He continued: “Things have changed dramatically this season. I was dropped – yet I didn’t perform badly. Sir Alex never gave me an explanation but I never asked him for one because it is not in my character.
“I accepted it but maybe Sir Alex didn’t feel the same way about me. Maybe he didn’t have confidence in me any more.”
He added: “It’s not true my family are unhappy in England. It’s not true I want to leave England for Spain. My four-year-old daughter Florencia is learning English and my wife is very happy living in England.
“We want to stay. I want to play in England because it is the best league in the world and it suits my style.
“Any club I join, whether it be Arsenal, Chelsea, Manchester City, Liverpool or Everton, will be a rival of Manchester United.
“I would like to thank the United fans for their support. They will always have a special place in my heart.
“If I was a United fan I wouldn’t want to see their player in any other shirt but I think they will accept I’ve done everything I can.”
