SAN DIEGO -- Arizona Diamondbacks right-hander Shelby Miller is keen to prove he is able after being unraveled by Cain.
Miller faces the Padres on Tuesday night in a game that kicks off San Diego's second homestand.
Jarred Cosart (0-0) is matched against the unpredictable Miller (1-1) as the Padres try to snap a four-game losing streak in the first of three games between the clubs at Petco Park.
Miller's pitching deteriorated after he allowed a booming fifth-inning double to Giants pitcher Matt Cain in his last start.