The Diamondbacks are offered at a lucrative price for sweep aversion Wednesday against the Padres. San Diego has won the first two meetings of the series behind two-run homers that provided the difference in one-run games. But the spot value in the final is on Arizona, which already has beat up San Diego starter Eric Lauer twice this season. Lauer is 0-2 this season against the Diamondbacks, giving up seven runs on 17 hits in 10 innings for an ERA of 6.30. Arizona starter Merrill Kelly is 1-0 in two starts against San Diego this season.