Two teams that imported Jeff Samardzija for runs at a World Series title meet Monday night when the rival Oakland Athletics and San Francisco Giants begin their annual interleague series. The first-place Giants (49-28), having won 13 of their last 16 at home, will host the first two games of the four-day affair. The fourth-place A's (32-43), coming off a 3-1 series win in Anaheim against the Angels, will be the home team Wednesday and Thursday when the battle for San Francisco Bay Area bragging rights concludes in Oakland.