Dolphins coach Adam Gase says defensive end William Hayes tore his ACL when trying to avoid putting his body weight on Raiders quarterback Derek Carr in the second quarter of Sunday's 28-20 win.
On a third-and-three from the Oakland nine-yard line, Hayes was able to get a sack on Carr to force a punt and give Miami a shot at good field position.
As Hayes approached Carr though, he adjusted his steps so he could be in better position to roll over Carr instead of landing on him with his body weight, which could have been a 15-yard personal foul penalty for roughing the passer.