Manchester City defender Kolo Toure blames himself for his failed drug test.
Toure claimed he had taken his wife Awo's diet pills and that they led to him testing positive for a banned substance after the Manchester derby last month.
His adviser Valer Gourizro said: "He blames himself. You can't blame anyone but yourself in this situation. He can't blame his wife, can he?
"He didn't know there was anything in the pills. Sometimes you do things but he didn't realise the consequences. He does now.
"He takes responsibility but believes he's done nothing wrong. We've got a good case and don't think it will be a two-year ban. That would be a great shame because he's one of the cleanest players in the Premier League. He's had phone calls from the Arsenal players, Arsene Wenger, everybody. Nobody can believe it.
"His brother Yaya lives very close and is a big support for him at the moment. So is Patrick Vieira, who he played with at Arsenal. He's got Awo and the kids, and Yaya's family as well. Mentally he's fine.
"The City coach (Roberto) Mancini likes him and I spoke to (City football administrator) Brian Marwood last night. He said that the club will stand by Kolo and they know that he gives 100 per cent for City."
