SAN FRANCISCO — Joe Maddon sat down at a podium at AT&T Park on Sunday afternoon and said it would be foolish for his team to be overconfident. A few minutes later, when asked about Madison Bumgarner, he gave a good reason why. Maddon compared the Giants' ace to Hall-of-Famers Bob Gibson and Sandy Koufax."It's unique," Maddon said of Bumgarner's postseason dominance. "I hope the kids that are really watching right now understand how good this guy is and how it parallels throughout baseball history, what he's doing right now." Man Poses as Walmart Employee, Steals From Register Bumgarner has earned the praise through his October work, and the Giants have once again put him in a win or go home situation. Monday's appearance will be his third in the postseason with that mentality, and he has yet to allow a run in 23 innings with his back up against the wall. It will also be the second straight time that Bumgarner is up against a pitcher with a similar pedigree.After outlasting Noah Syndergaard, Bumgarner will face Jake Arrieta. The reigning Cy Young Award winner has a 1.82 ERA in six career starts against the Giants, and he gave up just one run and struck out eight in a win...