The Mariners are back to being who we thought they would be. They are 3-12 in their last 15 games. 
Seattle has managed only nine runs in its last five games and just three runs during its last three games. 
Lance McCullers Jr. should be set up for success against the Mariners. McCullers looked great in his comeback from Tommy John surgery during his last start. That came against the Giants this past Tuesday giving up just one hit in seven scoreless innings. McCullers also is 7-2 with a 2.93 ERA in 12 lifetime starts versus the Mariners. 
The Astros draw Seattle rookie Justus Sheffield. He has a high ceiling, but is being force-fed this season and taking his lumps. His ERA sits at 5.27.