Update to the earlier Update on Gerald Riggs’ Season-Ending Injury.
The tackle that caused Tennessee Volunteer Gerald Riggs’ season-ending injury is apparently illegal in the NFL, but still legal in college:
Riggs suffered ligament damage to his ankle and a broken fibula when Alabama defensive back Simeon Castille tackled him near the goal line in UT’s 6-3 loss to the Tide.
“The guy fell on me and basically horse-collared me,” Riggs said. “He came down on the back of my ankle trying to tackle me.
“All his weight came down on it. There was nothing I could do.”
Such a tackle is illegal in the NFL. It is commonly referred to as the “Roy Williams Rule” after the Dallas Cowboys’ safety popularized the move, which consists of grabbing a ball carrier’s shoulder pads from behind and rolling up on him.
The NFL deemed the tackle illegal before the 2005 season. The play is still legal in college.
Riggs does not believe the tackle was made with the intent to injure.