Three of Roberts’ four right-handed hitting reserves — Teoscar Hernández, Kiké Hernández and switch-hitter Tommy Edman — were unavailable because of minor injuries, which could force the Dodgers to make a roster move to bolster their bench depth before Monday night’s series opener at Milwaukee.

The Houston Astros, who have won 11 of their last 13 series, go for a sweep against the Los Angeles Dodgers on Sunday. Houston was undetermined on its starter against Emmet Sheehan (0-0, 3.25) of Los Angeles. When: 3:10 p.m. Sunday, Dodger Stadium, Los Angeles TV: Space City Home Network Radio: 790 AM, 93.3 FM