So why didn't he have to leave the field? “If you have an injury timeout and attendant come out on the field, the injured player has to leave the field for a play,” FOX Sports Rules Expert Mike Pereira said. “But if you’re puking you don’t have to leave the field. If you’re bloodied you don’t have to leave the field, either.
“There’s no blood rule in the NFL. So my god don’t twist an ankle because you have to go out.”
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