The SF Giants created a spot on the 40-man roster by transferring Hayden Birdsong to the 60-day injured list. They will likely need to use that lever again with Reiver Sanmartin before Opening Day.
One roster lever the SF Giants will need to pull before Opening Day
Moving a player to the 60-day injured list creates an opening on the 40-man roster. Those 40-man roster spots are hard to come by around Opening Day, as teams balance preserving depth with building a strategic roster.
The Giants are no different in that regard. Luis Matos and Jerar Encarnación are out of minor league options.