"He did a good job, three innings," said Washington. "Progress. Once again it's all about how consistent you can be. If he can continue on that road into his next start, and continues into [the following] start, then we'll make an assessment as we get closer to September.
"It is encouraging. Not only for us, but for him also, coming off the injury. But he has to keep pitching, keep improving."
Following Saturday's game Holland said, "I felt really good. The big thing was I commanded my fastball better. I got back in the zone. I'm disappointed fastball-wise, but command was great, offspeed was good. Good tempo."
In his three rehab starts between Frisco and Triple-A Round Rock, Holland has allowed four runs in six innings. His next scheduled start is Thursday at Round Rock.
Richard Dean is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.