Chicago Cubs left-hander Justin Steele is set to return from the 15-day injured list to start against the Oakland Athletics on Wednesday, following his recovery from left elbow tendinitis. Steele has been on the IL since September 4 but has shown significant improvement, successfully completing a high-intensity 40-pitch bullpen session. Manager Craig Counsell confirmed Steele's return, which will temporarily extend the Cubs' rotation to six starters. Steele's season stats include a 3.09 ERA, 1.09 WHIP, and 131 strikeouts over 128 innings. His return is seen as crucial for the Cubs, who are still vying for a playoff spot.