You are assuming it's jealousy, I don't know why. Sammy was his teammate, it makes sense that he makes a comment about a person he knew and shenanigans he would have been able to know about, rather than taking shots at random guys in the league. Sammy is a disgraced former player who isn't involved in the game anymore, why would Grace be jealous of him? He made a ton of money, had a ton of adoring fans, is still in the game and beloved by many. I don't know, obviously. But the animosity goes back to their time as teammates. I thought it was pretty well known that Grace disliked him even then, and that the dislike was tied to the attention Sosa was getting. I'm making an assumption, but I feel pretty safe in it. But that doesn't prove jealousy. Even if that is exactly what was going on, why couldn't he have just disliked how popular Sammy was on the outside while being a cheating jerk on the inside? If he disliked a popular player who wasn't been hounded by roids scandals and wasn't a complete jerk to teammates, you'd have a case, but calling this a simply case of jealousy is a big stretch with what we know of Sammy and what we think we know of Sammy It's really easy to understand why a teammate wouldn't like him.