SAN FRANCISCO -- In a curious move late Wednesday night, the San Francisco Giants optioned outfielder Juan Perez to Triple-A Fresno to create a roster spot they filled by activating second baseman Ehire Adrianza from the disabled list Thursday.

Wednesday's move made perfect sense in one regard: Perez hasn't hit a lick in his three call-ups to the Giants this season, going 7-for-45 (.156). He batted so poorly, in fact, his role for the most part was reduced to late-game defensive replacement.

That said, Perez was the team's fifth outfielder. Instead, the Giants now have four part-time infielders (second basemen Adrianza, Joe Panik and Brandon Hicks and utility man Joaquin Arias) supporting the three everyday starters (first baseman Brandon Belt, shortstop Brandon Hicks and third baseman Pablo Sandoval).

That logjam won't clear up at all when veteran second baseman Marco Scutaro gets activated from the DL, which is expected to occur either Friday or Saturday. Likely one of the part-time quartet will be demoted or flat-out released.

The shortage of outfielders probably will end when center fielder Angel Pagan returns from his back injury. However, at this point there is no timetable on Pagan's return from an injury he sustained almost a month ago.