Woody. This will be a 6 IP, 2 ER job to make sure he isn't replaced any time soon.
From the Giants site:
The Budweiser Clydesdale horses will be on display near SBC Park on Friday (3-10 p.m. PT) and Saturday (11 a.m to 6 p.m. PT) in parking lot A across from the Lefty O'Doul bridge.
The horses are a constant reminder that Budweiser tastes like something you'd milk from a horse.