The White Sox non-tendered Jenks earlier in the month after a season in which he posted a career-high 4.44 ERA with otherwise strong numbers. His 58.3% ground ball rate placed him tenth among relievers with at least 50 innings of work, and he posted a 10.4 K/9 and 3.1 BB/9 in 52 2/3 innings. He picked up 27 saves, his lowest total since becoming the team's full-time closer in 2006. Jenks' 173 lifetime saves still would have resulted in a 2011 salary over $7MM, causing the non-tender from Chicago.
The Red Sox are familiar with Jenks' representatives at Legacy Sports after working out this deal and the one that brought Carl Crawford to Boston. The Red Sox have signed many relievers this winter: Dan Wheeler, Matt Albers, Andrew Miller, Randy Williams, Rich Hill, Jason Bergmann and Lenny DiNardo.