Ross Chastain (1) reacts with fans before the race for the duration of the Toyota Owners 400 at Richmond Raceway. Credit score: John David Mercer-Usa These days Athletics John David Mercer John David Mercer-United states of america Today Spor RICHMOND, Va. Ross Chastain added a new moniker after the checkered flag on Sunday at Richmond Raceway — and he doesn’t necessarily agree with its origins. The name? “Wrecking ball.” Shortly after the cars filed down pit road at the end of Sunday’s NASCAR Cup Series race that Kyle Larson won, Christopher Bell was asked to explain a pivotal moment: On a restart with about 20 laps to go, Chastain got…