Smith (elbow) will head back to San Francisco on Tuesday for a second opinion, CSN Bay Area's Alex Pavlovic reports.
There is concern about the integrity of his UCL after Monday's MRI, and it sounds like Tommy John surgery is a possibility. The Giants are hoping that Smith just needs treatment and rehab, which would still likely sideline him for the first couple months of the season. Steven Okert and Josh Osich project to open the year as the Giants two lefties out of the bullpen.