The Mariners are trying to trade David Aardsma, according to Ken Rosenthal of FOX Sports. As Rosenthal points out, the reliever will earn a raise from his 2010 salary of $2.75MM when he and the Mariners determine his upcoming salary through the arbitration process.
The Red Sox have missed out on a number of free agent relievers, so it would not be surprising to see them try to reacquire Aardsma, who turns 29 later this month. Kevin Gregg, who has drawn interest from a number of clubs, such as the Orioles and Red Sox, is among the possible replacements for Aardsma, Rosenthal reports.
Like Gregg, Aardsma generally posts high strikeout, walk and save totals. In 49 2/3 innings last year, he posted a 3.44 ERA with 8.9 K/9 and 4.5 BB/9. Aardsma has likely seen his trade value jump because of the rising cost of free agent relievers, as MLBTR's Mike Axisa explains here.