The 6-foot-4, 235-pound Boggs opened 2013 by appearing in two games for Team USA in the World Baseball Classic.
Boggs, a native of Dalton, Ga., enjoyed his best year in 2012, going 4-1 with a 2.21 ERA (18 ER/73.1 IP) and 34 holds over 78 appearances. The 34 holds led the National League and established a Cardinals team record. His 78 appearances tied the franchise record right-handed relievers, and tied for the third-most by a Cardinals reliever overall.
Boggs also ranked among the NL relief leaders in 2012 in games (4th), ERA (6th, 2.21), inherited runners scored percent (7th, 17.1), GIDP (T7th, 9) and IP (9th, 73.1).
He is 13-15 with a 4.12 ERA (145 ER/316.2 IP), six saves, 233 strikeouts and 43 holds over 242 career appearances (15 starts) with St. Louis (2008-13) and Colorado (2013). Boggs has limited first-batters faced to a .217 average (44-203) lifetime, while opponents have hit just .218 (70-321) with RISP in his career.
Boggs also has pitched in 17 career postseason games with the Cardinals (2009, 2011-12), going 0-1 with a 3.86 ERA (7 ER/16.1 IP), five holds and 11 strikeouts. He made seven appearances during St. Louis' 2011 run to a World Series championship.
Boggs originally was selected by St. Louis in the fifth round of the 2005 First-Year Player Draft. He will wear uniform No. 43 with the White Sox.
To make room for Boggs on the 40-man roster, Chicago outrighted right-handed pitcher Deunte Heath to Class AAA Charlotte. Heath will attend White Sox spring training as a non-roster invitee.