It's not surprising that Guerra is attracting interest. He was a key part of the Dodgers' bullpens in both 2011 and 2012, serving as their closer in parts of both seasons. He spent much of 2013 in Triple-A Albuquerque, but he posted good numbers in a tough environment for pitchers, with a 3.66 ERA, 8.2 K/9 and 3.2 BB/9 in 39 1/3 innings. He's also only 28 and is not yet arbitration-eligible. He is out of options, which limited the Dodgers' flexibility with him following an offseason in which they signed free-agent relievers Brian Wilson, Chris Perez and Jamey Wright.