Baseball pitchers sometimes illegally add substances to the ball to make it move erratically in the air. Gaylord Perry was notorious for breaking this rule and was frequently asked by fans to sign jars of Vaseline, his preferred ball-doctoring agent.

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7 Unsportsmanlike Athletes

Sports might bring out the best in some people, but not in everyone. The desire to win has often resulted in athletes bending the rules. In fact, cheating in sports has a long and infamous history. The following list is just a small sample of some athletes who seem to have adopted the maxim “if you