AARDSMA TO SEATTLE

The Seattle Mariners acquired pitcher David Aardsma from the Boston Red Sox for pitcher Fabian Williamson.

What does it give the Seattle Mariners
Aardsma is a candidate to fill a role in the middle innings for the Mariners, especially since they have wide-open competition this year.

What does it give the Boston Red Sox
The BoSox land a young lefty with upside, in exchange for a player they had already designated for assignment.