Louis Cardinals slugger Mark McGwire refused to answer questions ... and other ballplayers by his one-time Oakland A's teammate Jose Canseco -- the author of a recent tell-all book on the issue ...

Jose Canseco posted a Change.org petition on Monday ... As one half of the "Bash Brothers," Canseco and Mark McGwire compiled a total of 617 home runs together in their time with the A's.

And even for a teary and touched Jose Canseco, one of the newest members ... I'm an emotional wreck right now," the former ...

LAS VEGAS -- Jose Canseco warmed up for the start of spring ... On Saturday, Canseco eliminated his former Bash Brother Mark McGwire. Sammy Sosa was to have competed, but fell ill and had to ...