FILE - In this July 21, 1979, file photo, Oakland Raiders guard Gene Upshaw plants a kiss on quarterback Ken Stabler's cheek on his second day of NFL football training camp in Santa Rosa, Calif. Watching is Chris Shell, 3, the son of offensive tackle Art Shell. Stabler will be posthumously inducted into the Pro Football Hall of Fame in Canton, Ohio, on Saturday, Aug. 6, 2016. (AP Photo/Rich Pedroncelli, File)