MESA, Ariz. - Cubs minor-leaguer Christian Villanueva broke his leg during Sunday's workout.
Villanueva jumped up for a high-chopper during infield drills and came down awkwardly on his right leg.
He was carted off the field and the Cubs reported after Sunday's workout that Villanueva had broken his fibula and may possibly need surgery.
The exact timetable is unknown, but Villanueva will need at least several months to recover.
"It's really unfortunate," Cubs manager Joe Maddon said. "This kid came in ready to go. Made a great impression on us at the end of last season.