The right-back, who can also play on the left-hand side of defence, joined the Club as a 14-year-old but left in the summer of 2012 after failing to land a professional deal.
He then joined Loughborough University where he gained a degree in sports science with management. During his studies, he played for the University’s football side as well as Worcester City.
Williams impressed during his time with the latter and his formed earned him a move to Sky Bet League One outfit Barnsley, whom he helped to promotion and the Johnstone’s Paint Trophy title last season.
Despite making 22 appearances for the Tykes at the back end of the 2015/16 campaign, Williams left Oakwell at the season’s end and quickly opted for a move back to Milton Keynes where he’ll be looking to help the Dons achieve similar success to his former side.