When Ali came back too many times -- his terrible final bout against Trevor Berbick was fought on a dusty and dilapidated old baseball stadium with a cowbell used to chime the beginnings and ends of rounds -- there were always people rooting for him, always people willing to hope against hope. And when it ended, there were tears.
When Jose Canseco put up a video of his batting practice swing and links to it on Twitter, he gets hammered with dozens and dozens of responses from who tell him to go someplace and die.