As first reported by CBSSports.com’s Jon Heyman, the Red Sox will receive Hanrahan and a player to be named later in exchange for outfielder Jerry Sands, right-hander Stolmy Pimentel and two other unnamed players.
Boston needs a proven closer to ensure that it does not, once again, lead the league in blown saves. The Red Sox finished tied with the Los Angeles Angels with 22 blown saves last season.
Pittsburgh, meanwhile, avoids giving Hanrahan a hefty raise in 2013 via salary arbitration. The Pirates also ensured that they got some compensation for Hanrahan, who is set to become a free agent at the end of the season.
The Red Sox did not surrender any players that would were part of the team’s immediate or long-term future, so it’s hard to be negative about the trade. Here is a more in-depth look at how the Hanrahan trade impacts Boston’s bullpen next season.