The Boston Red Sox and Los Angeles Dodgers have expressed interest in Hanrahan, as Gordon Edes of ESPNBoston.com writes. Pittsburgh would likely be looking for a quality starter to plug into the rotation, while plugging Jason Grilli into the closer role.
The Red Sox have a full rotation and would be willing to part with one of their pitchers to replace Andrew Bailey, who was ineffective as the team's closer after the team allowed Jonathan Papelbon to walk away. The Dodgers have two potential closers in Brandon League and Kenley Jansen, but could use Hanrahan as a setup man.
Hanrahan was an all-star each of the last two seasons, recording 40 saves in 2011 with a 1.83 ERA, with declines to 36 and 2.72 in 2012. The 31-year-old will earn $4.1 million this year, but the Pirates could be interested in getting rid of him before a salary raise when his contract expires after 2013.