Brebbia was recalled by the Giants on Monday.
The Giants had to quickly adjust their plans Monday when both Johnny Cueto and Alex Wood landed on the injured list for undisclosed reasons. Cueto was scheduled to start Monday's series opener against the Brewers, so the team will go with a bullpen game instead. Brebbia gives the team an extra arm in the bullpen and could potentially offer some length, as he's recorded five or more outs three times this season.