Gary Caldwell has claimed he was sold by Celtic against manager Tony Mowbray's wishes.
Scotland defender Caldwell, 27, was officially unveiled as a Wigan player in a reported £1 million contract on Thursday. He left Parkhead six months before his Celtic deal was due to expire after talks over an extension broke down.
He has now suggested Mowbray was happy to concede to his wage demands but was vetoed by chief executive Peter Lawwell and majority shareholder Dermot Desmond.
"You have to ask Peter and Dermot if they underestimated me as a footballer," Caldwell said in the Scottish Sun. "They judged me and their judgment was a little bit off from mine.
"I have no regrets. I had three and a half years there and they were great for me - hopefully I was good for them. But the boss had one opinion and the club had a different one. I think the club won in the end."
He added: "The gaffer told me at different times he wanted me to stay. Ultimately, we came to a crossroads and it went the wrong way for me and my future at Celtic. There was one negotiation between my agent and Peter."