Arizona at San Diego

Arizona paid big bucks for Zack Greinke (9.90 ERA) but he's not throwing like an ace, allowing 20 base runners in 10 innings -- half of whom have reached home plate! Arizona has dropped five of seven and plays its fourth straight road game here. After losing 3-1 last night, the offense slipped to #18 in on-base percentage. San Diego is delighted to be home from a seven-game trip. The Padres have a strong veteran arm going in James Shields, who has allowed 12 hits in 13 innings with only three walks. Last season he was 6-3 at home with a 3.29 ERA, making this a great spot for the home dog. Play San Diego.