Walker to face Reds for first time
(MLB.com Arizona Diamondbacks)

Taijuan Walker of the D-backs and Luis Castillo of the Reds are both 24 years old and are exciting young starting pitchers. But there is a vast difference in experience. When he starts on Saturday night vs. Cincinnati, Walker will be pitching in his 79th big league game, while this will be Castillo`s fourth.