By the Associated Press
SAN FRANCISCO — Nick Ahmed hit a go-ahead home run leading off the fifth, Carson Kelly added a two-run shot in the seventh to help Alex Young win his major league debut, and the Arizona Diamondbacks beat the San Francisco Giants 5-1 on Thursday night.
Young (1-0), called up from Triple-A Reno to get his first shot, allowed two hits and one run, struck out five with one walk in five innings.
Christian Walker's RBI groundout put Arizona ahead in the fourth. Brandon Belt tied it leading off the bottom half with his 10th home run.