PHILADELPHIA — Arvell Reese smiled.

He described his breathtaking hit — an assault, really — and admitted it was probably the hardest he’s ever nailed someone on a sack. Then he was asked to recount it again, adding in his thought process as he launched himself for the attack.

“Step by step?” Reese said, bemused but certainly not unhappy with this particular request.

“First, I’m like, ‘The back is gonna block me,’’’ Reese said. “Then I see him go away, I’m like, ‘OK.’ Then, I see the QB still holding it, I’m like, ‘OK, he’s gonna keep holding it.’ ’’