WORCESTER — Baseball fans will be able to get a COVID-19 vaccine at Polar Park during the six-game homestand of the Worcester Red Sox.

The team announced Tuesday that up to 50 Johnson & Johnson vaccines will be administered each game, in partnership with the Edward M. Kennedy Community Health Center.

Those who get vaccinated will receive a free ticket to the game.

Fans must be 18 years old to participate.

“We are proud to be among the first Triple-A teams in the country to offer vaccines for fans during our ballgames,” said WooSox President Charles A. Steinberg. 

Staff from the health center will give the shots on a first-come, first-serve basis. 

The homestand opens Tuesday.

Fans interested in the vaccine offer should go to the park ticket office. Also, vaccines are available to fans who already have a ticket. In such a case, a ticket to a future game will be provided.

“We are pleased to be able to expand our reach beyond our health center doors to help ensure that anyone who wants the COVID-19 vaccine can get it safely, easily and for free,” said Kennedy Community Health President and CEO Stephen J. Kerrigan.

The Tuesday game marks the team’s first game since capacity limits were lifted in Massachusetts.

In May, the park was the site of a vaccine clinic. More than 200 shots were administered.