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Portland's Zizzo undergoes successful knee surgery
Portland, OR (Sports Network) - The Portland Timbers announced Tuesday that midfielder Sal Zizzo has undergone a successful operation to repair a medial meniscus tear in his left knee.
Zizzo concluded Portland's tilt with Red Bull New York on Sunday as a substitute but sustained the injury one day later in training.
The 25-year-old is expected to be out for four weeks.
03/05 12:42:12 ET