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Story summary
- The feud between Denny Hamlin and Ty Gibbs escalated at the Mobil 1 301, risking Joe Gibbs Racing's playoff hopes.
- Gibbs' aggressive driving caused a collision with Hamlin, sending Gibbs out early and provoking unity questions.
- Hamlin criticized Gibbs for not yielding; Gibbs appeared composed after the race.
- JGR will set clearer guidelines for non-playoff drivers to prevent conflicts.
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