What championship game at the Los Angeles Memorial Coliseum featured Mike Mercer on the Kansas City Chiefs in 1967?
Mike Mercer (American football):  He was a member of the Chiefs' 1966 AFL Championship team that played in the first AFL-NFL World Championship Game. Super Bowl I: The first AFL-NFL World Championship Game in professional American football, known retroactively as Super Bowl I and referred to in some contemporaneous reports, including the game's radio broadcast, as the Super Bowl, was played on January 15, 1967 at the Los Angeles Memorial Coliseum in Los Angeles, California.
Super Bowl I