Stewart signed a minor-league contract with the Royals on Tuesday.

The Cubs outrighted Stewart (elbow) off their 40-man roster Wednesday.

Stewart (elbow) was transferred to the 60-day injured list Thursday, Maddie Lee of NBC Sports Chicago reports.

The Cubs placed Stewart on the 10-day injured list Tuesday with right elbow inflammation, Meghan Montemurro of the Chicago Tribune reports.

Stewart was optioned to Triple-A Iowa on Saturday.

Stewart gave up five earned runs on six hits and two walks while striking out three in four innings Friday against the Cardinals. He did not factor in the decision.

Stewart will start Friday's game against the Cardinals

Stewart was recalled from Triple-A Iowa on Tuesday, Jordan Bastian of MLB.com reports.

Stewart was optioned to Triple-A Iowa on Monday, Meghan Montemurro of the Chicago Tribune reports.

Stewart is slated to start Saturday's game in San Francisco, Jordan Bastian of MLB.com reports.