"After talking with Jim and his agent, we felt the best course of action was kind of a hybrid," assistant GM Gord Ash said. "He's going to remain in our clubhouse and do conditioning and treatment work there but any games he pitches in will be on the Minor League side.
"The reason for that is twofold. Because of the structure of how he needs to pitch and when he needs to pitch, it's hard to plan for him in a Major League game. It's easier to do on the Minor League side when you can do it at your own discretion. Secondly, if this does end up in [an assignment to the disabled list], we want to maintain the ability to backdate it.
"One of his requests was to have continuity of treatment, which I understand. Instead of being one of 125 [players in Minor League camp], you're one of 40 and dealing with the same strength guy, the same trainers. The continuity is something he thinks he needs right now and we're open to that."
Henderson is scheduled to pitch an inning in a Minor League game on Sunday. The man who replaced him last season as Milwaukee's closer, Francisco Rodriguez, will pitch in the same game.
Barring a sudden jump in velocity, Henderson is now a long shot for the Brewers' Opening Day roster.
"We told him that's going to be difficult, but we haven't made that official determination yet," Ash said. "We told him that in 10 days, March 31, we'll sit down and see where we are."
Adam McCalvy is a reporter for MLB.com. Read his blog, Brew Beat, and follow him on Twitter at @AdamMcCalvy. This story was not subject to the approval of Major League Baseball or its clubs.