Canada's government requires a person must have received a second vaccine dose - or one dose of Johnson & Johnson - at least 14 days prior to entry.

"The parties have agreed that any player who, as a result of such a governmental regulation is unable or ineligible to play in a championship season game (or games) due to his vaccination status will be ineligible for placement on the COVID-19 IL, but rather may be placed on the restricted list … without pay or the accrual of credited major league service, during such period of unavailability," according to a letter from union deputy general counsel Matt Nussbaum to MLB senior vice president Patrick Houlihan, a copy of which was obtained by The Associated Press.