The Brewers could be getting a key piece of their starting rotation back very soon.Pitcher Kyle Harrison, who went on injured list July 11 made a rehab start with the Wisconsin Timber Rattlers on Thursday night and looked like the major league that he is."Felt good. It's good to get out there and. Yeah, just be myself again, he said. Drove up this morning, anytime you're this close and have beautiful facilities, beautiful ballpark, so it's a goo…