Zachary Howell of ClutchPoints.com is urging the Astros to add top pitching prospect Miguel Ullola to the MLB roster to take Hader's spot in the bullpen.

Houston Astros closer Josh Hader was diagnosed with a left shoulder capsule strain and will not throw for approximately three weeks, the team said Friday.

Hader’s IL placement was the first injury of his big league career — and it’s a significant one.