Gary MacKenzie has left MK Dons to join Championship side Blackpool for an undisclosed fee.
The Scottish centre half was widely tipped to link up with former Dons boss Paul Ince at Bloomfield Road after a loan switch with the Tangerines last season, and the permanent deal has today been confirmed.
He has signed a two-year-deal with a further one year option.
Dons boss Karl Robinson said: “Gary has been a tremendous servant to this football club and has matured both on and off the pitch during his time in Milton Keynes.
“When he initially made the loan move to Blackpool we all knew he would be a success and his performances warranted the interest we have had in him over the summer.
“Credit to Gary though, he has trained like a true professional with us over the last week despite knowing in the back of his mind that his future may lie elsewhere.
“It is not in this club’s nature to stand in the way of a player’s own personal progression and the opportunity to play in the Championship, and perhaps get the Scotland cap that currently eludes him, is too good to turn down.”
MacKenzie arrived at stadiummk from Dundee in 2010 and made 79 appearances at the heart of the Dons defence.