He pitched three scoreless innings against Midland on Tuesday, allowing one hit and a walk while striking out one. He threw 45 pitches and told his agent, Jonathan Maurer, "I felt great, like three years ago. I could have got big league hitters out today."
Webb will likely pitch four innings on Sunday against Corpus Christi, and build up from there. He was the National League Cy Young Award winner for the Arizona Diamondbacks in 2006, and a 22-game winner in 2008, but has not pitched in a Major League game in over two years because of a shoulder injury.
"It's good to see him out there," pitching coach Mike Maddux said. "It's going to be interesting to watch him. He just needs mound time."
Tommy Hunter, who allowed three runs in 3 2/3 innings for Triple-A Round Rock on Tuesday, will start for the Express again on Sunday. He is on the disabled list with a strained left groin muscle.