Lineup Card - Unlisted Players

[Dave Hensley]

MLB Umpire Manual:

3.1 LINEUP CARDS
Each manager should write the name of each eligible player on the face of his club's batting order card in addition to furnishing the starting lineup. However, a manager's failure to list an eligible player does not prevent that player from entering the game, nor is such failure grounds
for protest, as the listing of eligible players is simply a courtesy.