"He feels good about where he is right now, how his arm feels and how he feels physically in general, from the whole bad virus he contracted," Black said.
Richard has struggled this season to the tune of an 0-4 record and an 8.54 ERA in six starts. During his time on the disabled list, he worked on his mechanics, making sure his arm angle was more over-the-top.
"He feels comfortable, he's taken to it," Black said. "He feels as though he's got better action down on his sinker -- not horizontal, and I think his slider has better spin."
AJ Cassavell is a reporter for MLB.com. Follow him on Twitter @ajcassavell. Jamal Collier is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.