Adam Jones has thanked the Ospreys supporters for their constant support in an open letter after joining Cardiff Blues.
The future of the Wales prop has been long-standing discussion over the last few months but concluded in surprising fashion on Tuesday, when Jones was spotted in the Blues squad photo ahead of the new campaign.
The 33-year-old, who has over 100 Test caps, took up the offer of the Blues with a proposed contract from the Ospreys originally written up in January going unsigned as the lack of a participation agreement between the WRU and the Welsh regions rumbles on.
Writing "with a heavy heart" in the South Wales Evening Post, Jones thanked everybody at the Ospreys from the supporters to the club management in Mike Cuddy, Roger Blyth, Andrew Hore and Steve Tandy.
Jones also outlined the series of events that had lead to him to signing for the Ospreys regional rivals.
"As pretty much the whole world and his wife will know by now, I had been waiting for a deal to be struck between the regions and the Welsh Rugby Union, over a new participation agreement, so the Ospreys could conclude a fresh contract with me," said Jones in the South Wales Evening Post.
"I haven't been getting any money, but I was just hoping that the row that has blighted Welsh rugby for so long could be finally settled and I could pull on the black shirt again.
"Then on Sunday morning I received a call from the Blues asking whether I fancied a move there. I had to think long and hard about their proposal because I know all about regional rivalry and how much it matters in Wales.
"But my circumstances were such that I didn't feel I could turn Cardiff down. I haven't been paid for two months and the season is barely a fortnight away. I need to be properly attached to a team and training with a group of players in readiness for the new campaign.
"I couldn't wait forever. The contract with the Ospreys has been on the table since January but without signatures it meant only so much.
"No-one is to blame. Andrew Hore and Steve Tandy have been straight down the line with me throughout the negotiations. They haven't messed me about and I don't think I have messed anyone about, either."