Red Sox players David Ortiz and Shane Victorino will shave in a promotion at Gillette headquarters in Boston.
Joining them will be city policeman Steve Horgan, who was stationed in the Red Sox bullpen at Fenway Park. He became a fixture in Beantown after he was photographed with his arms in the air celebrating Ortiz's grand slam in the AL championship series against Detroit.
A fan chosen by social media also will take part in the shave-off.
The Red Sox players' beards became a symbol of their solidarity as they went from worst in the AL East last year to first this year by winning the team's third World Series title in a decade.