Unless you count Joe Biagini, who left the Giants as a minor league Rule 5 pick and ended up finding success in Toronto, there are no old friends on the two best teams in the Majors. The Astros and Dodgers might not have any former Giants headed to the postseason, but plenty of others do. From Yusmeiro Petit to Drew Pomeranz, the MLB playoffs are littered with faces that used to call Oracle Park home.