The Astros announced after Sunday's 6-1 win over the Blue Jays that rookie outfielder George Springer will begin a rehab assignment with Class A Quad Cities on Monday.

Springer has been working his way back from a left quad strain, and it was even thought that he might rejoin the team in Philadelphia for a series starting on Tuesday.

That seems unlikely now, though manager Bo Porter did hint that the rehab assignment would not last long.