The Chicago White Sox swapped out a pair of pitchers ahead of Wednesday's game against the Seattle Mariners. Michael Kopech returns from the 15-day injured list as Matt Foster heads to Triple-A Charlotte.
Kopech went on the shelf on Aug. 23 due to a left knee strain. He suffered the injury the day prior while throwing warmup pitches ahead of a start against the Kansas City Royals.
"Feeling quite a bit better...rested and recovered," Kopech said Tuesday of his expected return to the White Sox.
On the season, Kopech owns a 3.58 ERA and 1.211 WHIP across a career-high 110.2 innings. He will face a tough test Wednesday as he opposes Luis Castillo, a key Mariners' trade deadline acquisition.
To make room for Michael Kopech, the White Sox optioned Matt Foster to Triple-A Charlotte. The right-hander joined the MLB club when rosters expanded to 28 on Sept. 1. He pitched one scoreless inning with one walk and two strikeouts during his most recent call-up.