FILE - Oakland Raiders receiver Fred Biletnikoff, left, and quarterback Ken Stabler gesture after they defeated the Minnesota Vikings in NFL football's Super Bowl XI in Pasadena, Calif., Jan. 9, 1977. Biletnikoff caught four passes for 79 yards to earn MVP honors. (AP Photo/File)

FILE - Oakland Raiders quarterback Ken Stabler celebrates completing a touchdown pass en route to his team's 32-14 victory over the Minnesota Vikings in the NFL football Super Bowl in Pasadena, Calif., Jan. 9, 1977. (AP Photo/File)

FILE - Oakland Raiders defensive back Willie Brown displays the ball as he strides through the end zone, the one named for the Raiders, after his 75-yard interception return which gave the team their final touchdown of NFL football's Super Bowl XI against the Minnesota Vikings in Pasadena, Calif., Jan. 9, 1977. The Raiders beat the Vikings 32-14. (AP Photo, File)

FILE - Oakland Raiders wide receiver Fred Biletnikoff (25) runs with a pass he caught against the Minnesota Vikings during NFL football's Super Bowl XI in Pasadena, Calif., Jan. 9, 1977. Put together by Hall of Famer Al Davis, the Raiders featured a Hall of Fame coach in John Madden and eight players inducted in Canton: Ken Stabler, Gene Upshaw, Art Shell, Willie Brown, Fred Biletnikoff, Dave Casper, Ted Hendricks and Ray Guy. (AP Photo/Jim Palmer, File)

FILE - Minnesota Vikings quarterback Fran Tarkenton sits on his helmet dejected in the final moments of a loss to the Oakland Raiders in Super Bowl XI in Pasadena, Calif., Jan. 9, 1977. The title that eluded the Vikings that day still hasn't come to Minnesota.(AP Photo/File)