"They told me to come up here and stay awhile and go from there," Cosart said. "I have to keep doing what I've been doing. It's really close now [to reaching the Majors], but it's a great feeling to have. Hopefully in a few weeks or months I'll get another call."
Cosart, one of four players the Astros acquired from the Phillies in last year's Hunter Pence trade, said he will start Monday for the RedHawks against Omaha. Right-hander Aneury Rodriguez was originally scheduled to start that game, but the Astros announced Saturday night he was coming up to start Tuesday against the Marlins.
Rodriguez, who went 1-6 with a 5.27 ERA in 43 games (eight starts) for the Astros last year, is 1-3 with a 4.97 ERA at Oklahoma City.
"From what we understand he's progressed and thrown the ball real well, and I'm kind of anxious to see him," Astros manager Brad Mills said.