Their starting pitching hasn't performed at the standard they thought it would. You'd be hard-pressed to tell the San Diego Padres differently, based on the first three games of the teams' four-game series that will wrap up Thursday night in San Diego.

The Diamondbacks have a league-leading nine grand slams this season, and Perdomo has hit 10 home runs for the first time in his career, doing so before the All-Star break, at that. He also reached 64 RBIs, which is top seven in the National League.

The San Diego Padres conclude a four-game series with the Arizona Diamondbacks on Thursday night on MLB Network. Corbin Carroll is set up for a successful day at the dish in the series finale, making his total bases prop an appealing target. Read about why in my Diamondbacks vs. Padres predictions and MLB picks for Thursday, July 10.