" Zack Greinke's return has been considered relatively open-ended, but the best-case scenario of him returning for the April 16 start is likely out of the picture now, Brewers manager Ron Roenicke said Friday.

"If he's ready at that point, I'm going to be really happy," Roenicke said. "I just don't know if he's going to be ready then. I think we're not really planning on that early."

Greinke has yet to play catch. He has been doing cardiovascular training, elevating his heart rate to the point where he feels the rib injury, Roenicke said."