2021 LLB and LLS Tournament-Specific Measures FAQs What will the vaccine requirements be for players, volunteers (managers/coaches, umpires, tournament operations, etc.), and Little League International staff? Coaches and managers are strongly encouraged to be vaccinated, and, should a vaccine be available for age-appropriate players, vaccination would be also recommended for players if appropriate, but not required. All other adults on-site at the events (Little League International-appointed staff, volunteer umpires, officials, etc.), with the exception of team coaches and managers, will be required to provide proof of receiving their final dose of their vaccine at least two weeks prior to the start of their tournament event.