Summary: In this bonus presentation of our fellow Chronicle podcast A's Plus, John Shea and Susan Slusser preview the A's-Giants matchup this week and discuss the wild-card races for both teams. Plus: Pitchers hitting? And: John takes a look back at the 1989 A's and Giants, the Bay Bridge World Series teams, 30 years later. Learn more about your ad choices. Visit megaphone.fm/adchoices
