MESA, Ariz. — Chicago Cubs two-way prospect Nazier Mulé's professional baseball debut will be delayed.
Mulé is scheduled to undergo Tommy John surgery next week to repair his ulnar collateral ligament, sources told the Chicago Tribune.
The Cubs drafted Mulé, 18, in the fourth round last year and signed the right-hander to an above-slot $1 million bonus. During his senior high school season at Passaic Tech in New Jersey, Mulé was shut down from pitching midway through the spring because of arm fatigue.