In an appearance taped Monday, Pete Rose was asked by host David Letterman whether he ever used any performance-enhancing drugs as a player. Rose said he never did, but when prodded about "greenies," explained that he used them - though they were nothing more than "diet pills." "Well, I don't think greenies would ever help you do anything," he said. "You know, I took greenies before in spring training only because I tried to lose some weight, see." Letterman then asked whether the pills ever helped him ward off fatigue. "No, not like steroids," Rose replied. "If I took steroids, I'd have gotten 5,000 damn hits."