Houston Astros third baseman Alex Bregman (quadriceps) has yet to begin a rehab assignment as he continues to work his way back from his strained left quadriceps. He was supposed to begin a rehab assignment with Triple-A Sugar Land last week, but the team decided to pull back and keep him in Houston instead. It's likely that his rehab stint at Triple-A will begin at some point this next week. His return to the majors will likely be right at the end of this month or right at the start of August....