"We're going to make sure we're prepared," Astros general manager Jeff Luhnow said. "If we need to have the information from a baseball perspective to see what he looks like, we're going to have a scout there. It's an easy game for us to cover."
The 50-year-old Clemens made his first professional start in five years last week, pitching 3 1/3 scoreless innings against the Bridgeport Bluefish in Sugar Land, a suburb of Houston. He allowed only one hit -- a single -- and threw 37 pitches, 24 for strikes.
"My first start with the Skeeters was a great deal of fun," Clemens said in a statement. "There was lots of excitement in the air. I am looking forward to doing it again on Friday, Sept. 7. Stay tuned, I might have a few more surprises to come with the Skeeters."
Clemens, a seven-time Cy Young Award winner who pitched for the Astros from 2004-06, will travel with the team to York, Pa., before returning home to make his start. Astros owner Jim Crane has said previously the team would have some interest in him possibly returning to pitch for the club this year.