PHOENIX -- Chris Young is back with the D-backs and back in center field for Saturday night's game against the Astros, as part of a roster shakeup.

Young had been optioned to Triple-A Reno when his season-long struggles depressed his average to .194, with 95 strikeouts in 315 at-bats, and was recalled after hitting .370 in 13 games with the Aces.

Arizona also recalled left-hander Daniel Schlereth from Reno, where he had made only one appearance since being optioned to the Triple-A club.

To clear the two roster spots, outfielder Trent Oeltjen was optioned to Reno and a decision was made to place catcher Chris Snyder on the 15-day disabled list.

Oeltjen had broken in with 12 hits in his first 24 at-bats, but had gone 5-for-44 since.

An MRI of Snyder's lower back taken Friday revealed inflammation, and he was disabled three days before the expansion of rosters to 40 would have made the series of moves unnecessary. But the D-backs were eager to accelerate the return of Young, who was in Saturday night's starting lineup in the six-hole.

Young thus reunites in the outfield with right fielder Justin Upton and rookie left fielder Gerardo Parra.

Manager A.J. Hinch still considers that alignment his "A" outfield.

"In the ideal scenario, that's our strongest lineup," Hinch said.