Gattis is hitting seventh in Tuesday's lineup as the Astros' designated hitter, Jake Kaplan of the Houston Chronicle reports.

EDGE Analysis

The Astros opted to give Norichika Aoki an off-day Tuesday, which moved regular DH Carlos Beltran into the playing field. This allows Gattis to garner his first start of the season, where he'll be tasked with facing Seattle right-hander Hisashi Iwakuma.