Sosa will be heading to the minors for rehab.

He's expected to play at Double-A West Tenn this weekend in hopes he can rejoin the Cubs in Houston sometime next week, or by June 18 at the latest.

Triple-A Iowa is on the road this weekend, and the Cubs weren't about to pad the attendance of rival Oklahoma City when they could help out one of their own affiliates instead.

Also Sosa cut short his batting cage time due to his sore back. No idea how this might affect him going to AA.