What happened: Bryce Harper hooked a deep drive foul down the line with a chance to put Philadelphia ahead. He held his follow-through trying to keep the ball fair as it drifted foul.

Why it matters: A fair ball there flips a late-September game with postseason seeding still unsettled. Philadelphia kept its prior game state instead of taking the lead, leaving the outcome on the remaining outs.

What to watch: Watch how Philadelphia closes the inning after the missed chance and whether Harper gets another leverage spot.