Giants' top pitching prospect Mason Black debuts against Reds, aiming to end their winning streak.

Giants' top pitching prospect Mason Black aims to make a strong debut against the Reds on Saturday night, following in the footsteps of last year's phenom. Both Black and Kyle Harrison had similar experiences in their major league debuts, with manager Gabe Kapler facing key decisions in their games. The Giants hope Black can help end the Reds' eight-game winning streak after the Reds' 4-2 victory in the series opener.