Strickly star AJ Pritchard has told how his brother "saved his life" and risked his own dance career by folding in front of a pack of nightclub attackers.
Curtis, 22, a professional dancer on Ireland's dance with the stars, was left unconsciously in the "unprovoked" attack and required surgery on the knee.
His Strict Star siblings, 24, were left with bruises on the face, arms, body and legs.
AJ told The Sun: "Curtis risked his own dance career to save me when he threw himself in front of the attackers so they couldn't get to me.
"He was thinking of both my dance career with legs and television career with my face.
"He tried to protect me and saved my life and my feet from danger."
Curtis, who has been forced to withdraw from Dancing With The Stars' upcoming race, said the event on the Nakatcha nightclub in Nantwich, Cheshire, "could have been fatal" and could spell the end of his career.
AJ and partner Lauren Steadman finished fifth in BBC One's favorite, and the brothers had a family Christmas in Stoke-on-Trent, the paper said.