Stewart made two humbling starts with the Red Sox after the trade (14 earned runs in 5 2/3 innings) and 11 more at Triple-A Pawtucket. In November he was traded to the Pirates and then designated for assignment on Jan. 17.
In 33 career big-league appearances (14 starts), the right-hander is 3-10 with a 6.82 ERA. In 28 appearances (nine starts) with the White Sox, he is 3-7 with a 6.14 ERA.
Stewart's career highlight was a perfect game through seven innings in 2011 for the White Sox against the Minnesota Twins. He ended up with a complete-game one-hitter.
If John Danks isn't ready to start the season on time after shoulder surgery last summer, Stewart figures to be in the mix to hold down a rotation spot until Danks returns.