Each year, MLB sends a the winter leagues a list of players who are either injured or have meet certain performance thresholds and cannot play winter ball. Sometimes players on this list do play in the leagues but their play is limited by their parent club. Here is the list of the players in the Houston Astros organization who were on THE LIST
It appears that the Liga Biesbol Professional Roberto Clemente has taken exception with several of the names on the list including Houston's own George Springer. They state that Springer had just 506 At Bats instead of the 550 required for MLB teams to put a player on the list. They also refer to him as being a native Puerto Rican player, which is interesting since he is listed as being born in Connecticut.