During the same time period, MLBPA also introduced a new guideline for players to attain a rookie card. For years, players had been highlighted in previous sets as a rookie while still in the Minor Leagues. Such players would sometimes remain in the Minor Leagues for considerable time before attaining Major League status, making a player's rookie card released years before their first game as a major leaguer. The new guideline requires players to be part of a Major League team roster before a rookie card would be released in their name, and a designated "rookie card" logo printed on the face of the card. The rookie card logo shows the words "rookie card" over a baseball bat and home plate with the Major League Baseball logo in the top left corner.