Roger Clemens will not make his scheduled start Saturday against the Brewers. He left Monday night's game at Philadelphia after five innings with a strained right groin. "He's just not ready to go," Astros manager Phil Garner said after hearing from Clemens, who is in Kentucky to watch his son, Koby, play for the Astros' Single-A Lexington Legends in the South Atlantic League division series. "He still feels it."