Gonzalez had surgery to repair his left patella tendon and a remove a bursa sac on Monday. Dugger said the Rockies won't have a clear timetable for the 28-year-old's return anytime soon because of the bursa sac injury.
"We really won't know how he is going to be until that 4 1/2- to 5-month mark," Dugger said. "He might be a little delayed for Spring Training, but our goal is to get him there and get him ready.
"Nothing is a cure-all. The closest thing to a cure-all is the rehab."
Gonzalez played in 70 games this season for Colorado. He batted a career-low .238 to go along with 11 home runs and 38 RBI.
The Rockies have the worst record in the National League at 49-76.
- Paul Palladino