Marshawn Lynch backed Jalen Hurts on a podcast. Now the league reviews the case.
The NFL and the players union said on Sunday they will review the matter together.
A calf clot became a deep vein clot. It then caused clots in each lung.
Hurts cannot play until he is off blood thinners.
The Eagles said Hurts took a cleat to his calf against the Rams.
Hurts played Jacksonville in London after a surface clot was found.
Roger Goodell said all needed protocol was followed.
Michael Robinson suggested Hurts might be stepping back from team struggles.
Lynch told Robinson he sounded like he was cleaning up his words.
Fans called Lynch a national treasure and praised his plain talk.
Robinson called his comments unfounded and said he should not have speculated.
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