Constantine "Cus" D'Amato was an American boxing manager and trainer who handled the careers of Mike Tyson, Floyd Patterson, José Torres, and Vinnie Ferguson. Several successful boxing trainers, including Teddy Atlas, Kevin Rooney, and Joe Fariello, were tutored by D'Amato. He is known for developing the "peek-a-boo" boxing style in which a fighter holds his hands high in front of his face.