Cleveland will reevaluate Perez after the outing to decide whether he is ready to return to the big leagues or if he needs to continue his rehab.
Acta said Perez's velocity has been in the mid-80s in his recent Minor League outings. At this point, though, velocity isn't a major concern.
"He throws a lot of sliders and changeups, and relies a lot on movement," Acta said. "It's not like he's going out there throwing four-seamers to see how hard he can throw. The main thing for him is being healthy and getting people out. As long as he feels good, we're good with it."
Perez hasn't pitched since April 25 against Kansas City. He has a 3.52 ERA in eight appearances this year, and he posted a 3.00 ERA in 71 outings last season.