Chicago Cubs ace Justin Steele will undergo season-ending surgery to repair the flexor tendon in his left elbow, dealing a significant blow to the team's rotation. It was unclear whether Steele, who underwent Tommy John surgery in 2017, will need another full ligament-replacement procedure or a Tommy John revision with an internal brace. "On a day like this, you feel for Justin," manager Craig Counsell said before Sunday's series finale against the Los Angeles Dodgers.