Cade Horton To Undergo Season-Ending UCL Surgery

Cubs right-hander Cade Horton will undergo elbow surgery and miss the remainder of the 2026 season, manager Craig Counsell tells Sahadev Sharma of The Athletic. Per Meghan Montemurro of the Chicago Tribune, Horton has a torn ulnar collateral ligament. Whether he requires full Tommy John surgery or some sort of alternative won’t be known until the procedure is taking place. He is already on the 15-day injured list and will be transferred to the 60-day IL whenever the Cubs need to open a 40-man roster spot.

It’s a painful but unsurprising development for Horton. He started for the Cubs on Friday but threw a pitch that was about two miles per hour below his average. He summoned the trainer and was removed from the game, with the Cubs announcing his ailment as forearm discomfort. He was quickly placed on the IL and is now destined to stay there.

Horton entered the 2025 season as one of the top pitching prospects in the league. He delivered on that hype by giving the Cubs 118 innings with a 2.67 earned run average. He had big breakout potential here in 2026 but it will instead go down as a mostly lost season. The eventual details of his surgery will determine his path back to the mound. A full TJS usually has a timeline of 14 months or more, whereas an alternative such as the internal brace variety could allow a pitcher to return slightly quicker.

The young righty wasn’t called up until mid-May last year but pitched well enough to finish second in National League Rookie of the Year voting. As part of the Prospect Promotion Incentive, that gave him a full year of service time retroactively. He’ll continue to collect service time while on the IL this year and will get to the two-year mark. Along the way, he will turn 25 years old in August.

More to come.