Sox nemesis Chen cut loose by K.C.

CHICAGO -- There just weren’t enough Chicago White Sox lineups out there to keep pitcher Bruce Chen employed, as the left-hander was designated for assignment Friday by the Kansas City Royals.

Chen's mastery of the White Sox surfaced primarily over the past few years with the Royals. The soft-tossing 37-year-old has tied the White Sox in knots start after start.

Chen has an 8-5 career record against the White Sox with a 3.40 ERA over 129 2/3 innings. The only American League teams against which he has a lower ERA are the Astros (2.72), Royals (3.14) and Blue Jays (2.97); most of his innings against the Astros came when they were in the National League, and he has only two starts against the Royals.

Chen is a combined 8-2 against the White Sox over the past four seasons in 14 starts. Only once in those four seasons did he have an ERA over 3.12 against Chicago. He was 1-0 with a 1.59 ERA in two starts against the Sox this year.

Paul Konerko has five career home runs against Chen, but even he has been reduced to a .222 (12-for-54) batting average against the lefty, while Alejandro De Aza is 4-for-18 (.222), Adam Eaton is 1-for-6 (.167), Tyler Flowers is 1-for-12 (.083) and Conor Gillaspie is 1-for-9 (.111).