The 31-year-old right-hander boasts a 2.23 ERA, 1.03 WHIP, and 52/13 K/BB ratio in 48 1/3 innings this season.
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The Brewers sent minor league outfielder Ryan Cordell, rated their 17th-best prospect in the newly updated MLBPipeline.com rankings, to the White Sox. Swarzak is not now under contract past the 2017 season. The former starter in the Minnesota Twins organization came into 2017 with a 4.52 ERA in 484 career innings, making 32 starts and 185 relief appearances for Minnesota, the Cleveland Indians and the Yankees.
Cordell, who has played all three outfield positions and third base, appeared in 68 games for Triple-A Colorado Springs this season, hitting a respectable.284/.349/.506 with 10 homers, 45 RBI and nine steals in 261 at-bats. Cordell came in Lucroy trade a year ago.