On Thursday, the Philadelphia Phillies and Philadelphia Eagles announced that fans will be required to wear masks while in indoor areas of the stadiums and both teams strongly encourage unvaccinated fans to wear masks at all times anywhere at the park. These decisions come after Philadelphia officials announced masks are required in any business or institution that does not ask for proof of vaccination on entry. Health Commissioner Dr. Cheryl Bettigole said the city mandate "means everyone in Philadelphia must wear a mask when going into any business or institution, with an exception for those that require vaccinations," Bettigole said. "Restaurants will need to require masks for customers and staff, except when people are seated and actively eating and drinking. If a business or institution is requiring that everyone, including staff, be fully vaccinated before entering, then no one in that place needs to wear a mask."