** FILE ** In this Sept. 20, 1973 file photo, New York Mets' Willie Mays gestures at a Shea Stadium News Conference where he announced his retirement, effective at the end of the 1973 season. Brett Favre went on national television to try and explain something he couldn't quite explain. He's got plenty of company, because when it comes to retirement there aren't many athletes who can figure out when it's really over. (AP Photo/John Rooney, File)