Papelbon is the first major free - agent signing this year .
Papelbon 's the first Papelbon to leave the Red Sox in a turbulent offseason that began with the departure of manager Terry Francona and was followed by general manager Theo Epstein going to the Chicago Cubs .
Papelbon is the first major free - agent signing this year , and he 's the first player to leave the Red Sox in a turbulent offseason that began with the departure of manager Terry Francona and was followed by general manager Theo Epstein going to the Chicago Cubs .