MLB Rules
🏛️Official — MLB4.1 Teams and Rosters (OBR Rule 4.01–4.03)
Verdict
Per OBR Rule 4.01, a regulation game is played between two teams of nine players each. Each team's manager must deliver to the umpire-in-chief and the opposing manager a batting order containing each starting player's name and position at least 5 ...
Source: Rule 4.01, Rule 5.10
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