The Dons have signed defender Joe Walsh from Crawley Town for an undisclosed fee.
Speaking to mkdons.com, Walsh said: “I’m delighted to get this deal sorted. I enjoyed my time here on loan and it just supported what I already knew – this is a club going places and I’m looking forward to being a part of it all.”
“I’m really excited about playing in the Championship and I’m already itching to get back for pre-season. We’ve got a talented bunch of lads here and I’m sure we won’t just be making up the numbers.”
The former Crawley captain, who played alongside Dons team-mate Kyle McFadzean and worked under Head of Coaching Richie Barker, becomes manager Karl Robinson’s first signing ahead of the 2015/16 campaign.
Robinson said: “We signed Joe on loan with the intent to make him a permanent member of the squad so I’m pleased it’s been finalised.
“As I’ve said before, he gives us something we haven’t had for a while in terms of being a left-footed centre-half. He impressed us both in training and on the pitch last season and he adds to a strong group of centre-backs that we know can compete for starting places.”