was operated on Tuesday by Dr. Richard Steadman and had been expected to be sidelined for four to six weeks.
Minnesota said Steadman found damage to be more extensive than an MRI indicated. As a result, Steadman performed a full repair instead of a trim of the meniscus. Castro’s meniscus was trimmed during an operation in 2011.
Falvey said Castro’s rehabilitation will take five to six months, putting the 30-year-old on track to be ready for spring training.