Steve Bruce has revealed the 'soap opera' over the takeover of Birmingham City led to him jumping ship two years ago.
The now Sunderland boss will take his current club to St Andrew's on Saturday and is still frustrated about the way he was forced to leave the Blues.
Bruce left in 2007 to join Wigan Athletic after Carson Yeung – now the Blues owner – failed to complete his protracted takeover of the Midlands club.
"I was left in an impossible situation and nowhere to go really," Bruce told BBC Radio Five Live.
"It was becoming a soap opera. We had just got back up (to the Premier League) and there was no mention of the team or what we were going to do about the team and about players.
"It was just about the takeover of the club. I was left in a situation where promises were broken. To be fair (then co-owner) Mr Sullivan wanted to give me a new contract, then all of a sudden it became an issue with the board.
"It was an ongoing saga. It became impossible to manage. In the end I had to go.
"It became nasty in the end and left a bad taste for what eight years down the line, six as a coach and two as a player – was sad really.
"I think the supporters of Birmingham realised that I had to go for my own self and my own sanity."