Bielak was optioned to Triple-A Sugar Land on Sunday, Brian McTaggart of MLB.com reports.

EDGE Analysis

The 25-year-old allowed four unearned runs over the past two days and will head to the minors in favor of a fresh arm. Bielak has a 3.97 ERA, 1.24 WHIP and 17:8 K:BB across 22.2 innings for Houston this season.