Chicago Cubs outfielder Owen Caissie has entered MLB’s concussion protocol after colliding with a wall on Saturday. The team now faces the prospect of managing without him for an uncertain stretch as he recovers.
Cubs Star Owen Caissie in MLB Concussion Protocol After Collision with Wall

Key Takeaways:
- Owen Caissie collided with a wall on Saturday
- He is now in MLB concussion protocol
- The Cubs will be without him “for a bit”
- The timeline for his return remains unclear
- The news originated from Sports Illustrated (Si)
Concussion Protocol and the Cubs
Owen Caissie, a young and promising outfielder for the Chicago Cubs, has been sidelined after a collision with the outfield wall on Saturday. The impact caused a concussion that forced the club to place him into MLB’s concussion protocol.
Details of the Incident
While full details about the collision are limited, the Cubs quickly determined that Caissie would need to be evaluated for a concussion. Reports indicate the team expects to be without his services “for a bit,” though no official timetable has been released.
MLB Concussion Protocol
Under league guidelines, players must clear several stages before returning to the field, focusing on both cognitive and physical benchmarks. The exact length of the protocol varies, ensuring an athlete does not rush back prematurely and risk further harm.
Team Outlook
For the Cubs, Caissie’s absence could have a noticeable impact. Although the full extent of his condition remains private, losing a key outfielder—particularly one with promising potential—is never ideal for a roster bracing for the late-season push.
Looking Ahead
As Caissie progresses through the required concussion tests and rest periods, the Cubs will monitor his health closely. Fans and team officials alike hope for a swift but safe return, underlining the importance of player health in a physically demanding sport.