Gagne will serve as Papelbon's primary set-up man and will close
on days Papelbon needs rest.
"We actually love our bullpen," Boston manager Terry Francona
said of his relievers, who have the lowest ERA (2.74) in the
majors. "I think it just got a lot better. Papelbon, Okajima and
Gagne -- these are guys that you don't match up. You just let them
pitch really good baseball."
Shortly after acquiring Gagne, Boston announced that reliever
Brendan Donnelly will have season-ending surgery on his right
elbow.
"Eric wanted to be in a playoff environment," Boras said. "He
has respect for Papelbon, and I'm sure Papelbon has respect for
him. While he won't be a full-time closer there, it was an
opportunity to win."