Pittsburgh was up 5-4 on the Giants and Chris Stewart walked to load the bases with one out. It was looking like Pittsburgh was in for a big inning to open up the game, but then the unthinkable happened: two players were tagged out on the bases as Stewart was heading to first.
First Travis Snider was picked off second and tagged out, and then Gaby Sanchez was caught in a rundown and also tagged out. Pirates baseball for you. After a play like that, it should come as no surprise to you that they blew the game and lost.