SAN FRANCISCO — It was bound to happen eventually. Relief pitchers aren't perfect, you know. Not even the Kansas City Royals' highly touted HDH bullpen that's helped them get this far in the postseason. That's Kelvin Herrera, Wade Davis and closer Greg Holland, the lockdown trio that, if things are going right, if the Royals are winning, Ned Yost calls out for the seventh, eighth and ninth innings. Combined they'd given up three runs the entire postseason — one in the AL wild-card game, one in the ALDS and one in the ALCS. Things weren't going right Sunday night in Game 5 of the World Series , but Yost called them anyway. He had no choice. He couldn't let the Giants get further ahead. But they did — because for the first time this postseason, HDH cracked. Well, Herrera and Davis did. They let in three runs (two earned) in the eighth inning, letting a 2-0 Giants lead become a 5-0 Royals loss .