Lyles, called up to start Tuesday's game in Philadelphia, will remain in the rotation and is scheduled to make his third start of the season for the Astros on Sunday against the Rangers. Lyles has spent the majority of this season at Triple-A Oklahoma City, having also made a spot start for the Astros on April 29.
Both of Lyles' starts have come on the road, and he's allowed 10 hits, four walks and struck out nine in 12 innings. He credits Oklahoma City pitching Burt Hooton with helping him get off to a quick start this season (he was 5-0 for the RedHawks).
"I really think I've made huge strides forward a couple of starts in working with Burt Hooton," Lyles said. "We worked on delivery things here and there to get more tilt and more angle on the ball and use my frame as much as I can to get the most out of my body. My velocity's been up and it's worked well."
Lyles came up for one start at the end of April to fill in for the injured Kyle Weiland.