Grilli (undisclosed) was unavailable for Saturday's game, according to manager Fredi Gonzalez, the Atlanta Journal-Constitution's David O'Brien reports. Gonzalez would not elaborate about why Grilli was unavailable in a game where Bryce Harper hit a walk-off homer in the ninth inning off Cody Martin. However, he did say he was hopeful it was just a one day thing. Consider Grilli day-to-day for now.