At the heart of Cliff’s ties to the Raiders is his deep connection to the Davis family. Al Davis’ respect for Cliff on and off the field was well-documented, and his relationship to Mark Davis was more like a brotherhood. They spent early years as roommates together, and Davis has called Cliff his best friend. “We had so much fun,” the Raiders owner said recently. “We accomplished so many things, and I watched him grow as a human being, as a football player and as a friend.” It’s no surprise Davis will present Cliff for induction into the Pro Football Hall of Fame.