According to WEEI.com's Alex Speier, both Nick Green and Joey Gathright elected to become free agents after the Red Sox outrighted them off the 40-man roster late last week.
Green, 31, hit .236/.303/.366 in 309 plate appearances in 2009, holding down Boston's shortstop gig for much of the season. Speier mentions that Green will have surgery on his back today to correct a disc and nerve problem.
The 28-year-old Gathright received just 32 plate appearances with the Cubs and Sox this season, but made Boston's postseason roster as a pinch-runner specialist.
