The White Sox exercised their $3.75MM club option on reliever Jason Frasor, tweets Mark Gonzales of the Chicago Tribune.
The Sox have a good collection of relievers under contract for 2012, but exercising the option on Frasor makes sense since he has positive trade value. The 34-year-old Chicago native posted a 3.60 ERA, 8.6 K/9, 3.9 BB/9, 1.05 HR/9, and 37% groundball rate in 60 innings for the Blue Jays and White Sox this year.