The Chicago White Sox could go into the 2013 season with four left-handed pitchers in their starting rotation, making it their most lefty-heavy rotation since 1980. Lefty Chris Sale is a lock for next year's rotation, as is John Danks, assuming he's healthy following August shoulder surgery. Jose Quintana likely holds down a third spot as a left-hander, and the White Sox are giving Hector Santiago a solid look for another spot.
The White Sox have an 2013 option on Jake Peavy, and if they don't bring him back Santiago is a leading candidate to replace him. If Santiago wins a spot in the starting rotation he would make the fourth lefty, with Gavin Floyd as the only right-handed starter on the opening day roster. The White Sox have shown they don't have any problems going heavy on left-handers as they started four consecutive lefties twice in September of the 2012 season.
The White Sox had a mostly left-handed staff in 1980, with four left-handers in the rotation to open the season and six lefties getting 10 or more starts.