Slater went 1-for-3 with an RBI single in Wednesday's 7-1 win over the Nationals.
The 31-year-old hit in the leadoff spot Wednesday afternoon and picked up his first RBI of the year. Slater and Tyler Fitzgerald were slotted into the outfield for rare starts Wednesday against Washington southpaw Patrick Corbin, which is just the second left-handed starter San Francisco has faced this season. Mike Yastrzemski has been earning the majority of the playing time in right field and will likely continue to do so versus right-handed pitching, with Slater's chances likely to come against lefties.