MK Dons have signed Brighton defender James Tunnicliffe on a one-month emergency loan deal.
Dons boss Paul Ince had been scouring the market after seeing a host of defenders sidelined through injury.
Ince has now boosted his options with the arrival of the 6ft 4in centre-half as cover, with Tunnicliffe set to make his debut in Saturday's trip to Carlisle.
Assistant manager Karl Robinson said: "James is a player we have admired for a long time and one we have been considering trying to bring in for two years.
"The injuries we have suffered in defence this season have been unbelievable so it was essential to bring someone in and to get one of James' quality is a great result."