"I heard it was OK, but the velocity, from what I heard -- I didn't get any numbers -- wasn't there," Brewers manager Ron Roenicke said. "He's not a guy that's going to throw 90 and be a command guy and throw off-speed pitches. He's got to have life on his ball. And when there's life, there's velocity."
Henderson has been working out in Arizona with right-hander Tyler Thornburg, who is on the disabled list with a right elbow injury. Thornburg has begun a throwing program.
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.