Astros right-hander Jordan Lyles was officially recalled by the organization on Sunday from Triple-A Oklahoma City in order to start the rubber game against the Reds at Great American Ball Park.
The former top prospect has posted a 4-0 record with a 3.46 ERA over 26 innings in four starts for the RedHawks to begin 2012.
He's currently tied with Eric Hacker (Fresno Grizzlies) and Will Savage (Albuquerque Isotopes) for the Pacific Coast League lead in wins.
Lyles, 21, went 2-8 with a 5.36 ERA and 67 strikeouts over 94 innings in 20 games (15 starts) as a rookie for the Astros last season.
He spent most of the 2011 season as the youngest player in the majors and earned his career big league win against the Reds on Aug. 3.
With righty Kyle Weiland on the 15-day disabled list, Astros manager Brad Mills has made a few adjustments to the club's rotation.
Bud Norris will start Monday's home series opener against the Mets, with J.A. Happ and Wandy Rodriguez scheduled to start the next two.
Sunday's first pitch is scheduled for 12:10 p.m. CT.