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A former WBC welterweight champion, Andre Berto (28-1, 22 KOs) has a chance for redemption Saturday (HBO, 10 p.m. ET/PT) when he faces WBC interim 147-pound champion Robert "The Ghost" Guerrero in Ontario, Calif.
Berto was suspended after testing positive for a banned substance before his scheduled June rematch against Victor Ortiz. That fight was later canceled.
Here are five keys to a possible Berto victory Saturday against Guerrero (30-1-1, 18 KOs):Bernardo Pilatti is a contributor to ESPNdeportes.com.