Roger Clemens will pitch to Houston Astros prospects on Monday and Thursday during the Minor League minicamp at Osceola County Stadium. General manager Tim Purpura confirmed on Sunday that the Astros received permission by Major League Baseball to allow Clemens to pitch to the Minor Leaguers, one of whom is third base prospect Koby Clemens. The minicamp began earlier this week and will continue until the remainder of the Minor Leaguers report to Kissimmee on March 5. Clemens, 43, is training for the World Baseball Classic and asked the Astros for the opportunity to pitch in their minicamp. "He's not doing this by our request," Purpura said. He's doing this at his request, in preparation of the World Baseball Classic."