They think it is an act. When I said I had back trouble, they call me Mama's Boy. Goldbrick. When my elbow was swollen as big as a softball, they say it was in my head. If I am sick, I do not deny. If my back is hurting me and I am forced to punch at the ball with no power, I tell the truth. I tell them I am hurting.
As quoted in "Roberto Clemente: Man of Paradox" by Arnold Hano, in Sport (May 1965) - Baseball-related