From Brian McTaggart, LaTroy Hawkins did not join the Astros on the trip to Chicago on Sunday, and will have an MRI on his back.
Wade:
"He's been pitching with an upper back strain and shingles. We just want to see if the discomfort is a strain or a side effect of the shingles. He has been pitching with this for awhile."
LaHawk is expected to join the team in time for Monday night's game.