The Arizona Diamondbacks are in an absolute free fall, having lost 24 of their last 26 games. D'Backs righty Merrill Kelly (4-7, 4.73 ERA) is coming off a pair of solid starts, but note that he was tagged with four runs in three innings of a 13-7 loss to San Francisco on June 16.

The Giants hand the ball to right-hander Johnny Cueto (6-3, 3.63 ERA) who held Oakland to five hits through seven scoreless innings last time out. The team has won five of his last seven starts.

8* play on San Francisco Giants.