Rangers right-hander Brandon Webb begin a 30-day injury-rehabilitation assignment with Double-A Frisco by starting against Tulsa on Monday. It is Webb's first true game appearance since April 6, 2009, when he worked four innings in an opening day start for Arizona. In August 2009, Webb underwent surgery to remove debris and inflamed tissue from his right shoulder. Since then, he has faced hitters only in controlled situations such as batting practice and extended spring training games. "I look at it as the next step in the process," Webb said Sunday. "I'm looking forward to it. I'm sure there will be more adrenaline, and that should help." Texas outfielder Julio Borbon, on the disabled list since May 14 because of an inflamed left hamstring, will accompany Webb to Frisco.