Communication Breakdown Leads to Major Crash in NASCAR Practice

Alon Day and Justin Allgaier involved in high-speed collision during Chicago Xfinity Series practice, resulting in significant damage and withdrawal.

Alon Day, driving for Alpha Prime Racing, collided with Justin Allgaier's stationary car during a practice session.
The crash occurred under a yellow caution flag, highlighting a critical communication failure between Day and his spotter.
Allgaier's team had a backup car, allowing him to continue, while Day's team did not, forcing his withdrawal from the race.
Both drivers emerged uninjured, but their cars sustained extensive damage, with Day's car towed from the track.
The incident has raised concerns about spotter communication and NASCAR's handling of caution flags.