Sonny Bradley has joined the club on a season-long loan deal from npower Championship club Hull City.
The 6ft 4" defender made 14 appearances last season after joining the club in the January transfer window.
After returning to the KC Stadium towards the end of last season Sonny made his debut for the Tigers in the home league encounter versus Coventry City followed by an appearance at Millwall.
Manager Dean Holdsworth told the clubs official website: "This is excellent news.
"Sonny developed an excellent relationship last season and he adds more strength to our squad. It has given us all a lift again after the disappointment of losing Craig Stanley to injury at the weekend.
"I would like to thank Steve Bruce and Hull City Football Club for their help in arranging the loan agreement."