Alvarez underwent successful shoulder surgery Tuesday (his second such surgery) and is without a timetable to return, the San Francisco Chronicle's Susan Slusser reports.
As with any arm surgery, the second time around is a lot harder to return from, so Alvarez will face an uphill battle. His first surgery was 14 months ago and both procedures were done by Dr. James Andrews. This surgery entailed a bicep tenodesis procedure as well as an excision of a boney exotosis in his right shoulder. It would not be surprising if he missed most or all of the 2017 season.