"He got after it and threw and didn't feel anything," relayed manager Clint Hurdle. "That's the first time that he's thrown and said afterward that there's nothing there.
"It was his most efficient bullpen [session]. He felt great, is in a very good place and looking forward to pitching for Indianapolis."
The rehab start for the Triple-A Indians comes up on Friday and is mapped out for three innings or 50 pitches. After that episode, the club will have a better idea whether Hurdle's renewed optimism that Rodriguez could be a postseason participant is misplaced.
Rodriguez is one of six players currently on the 60-day disabled list.
Tom Singer is a reporter for MLB.com and writes an MLBlog Change for a Nickel. He can also be found on Twitter @Tom_Singer. This story was not subject to the approval of Major League Baseball or its clubs.