Soccer star George Baldock -- who played seven seasons with Sheffield United -- has died after his body was found in a pool on Wednesday. He was only 31.
Sheffield United confirmed the defender's death hours after Baldock was discovered at his Glyfada, Athens home.
Emergency responders reportedly used life-saving measures at the scene ... but they couldn't revive him. His cause of death is unknown at this time.
"Sheffield United Football Club is shocked and extremely saddened to learn of the passing of former player, George Baldock," the club said in a statement.