Chargers’ Donte Jackson brings vigor, leadership to overhauled secondary

LOS ANGELES — Taylor Heinicke visibly tensed the moment the ball left his fingers. He knew it was long.

A whistle blew — late. The play was already in motion. His intended receiver ran the route as drawn, the ball sailing just past his fingertips. The corner trailing him had bailed, anticipating something the receiver hadn’t.

Chargers veteran Donte Jackson vacated man coverage and drifted into space. He plucked the ball from the air with ease. The whistle echoed as the interception landed.