Ive found nothing on Gibsons injury so far. RR in his post game last night said he hadnt talked to trainer yet. Doesnt RR normally do a 10:30 am zoom day after game? perhaps thats changed since this wasnt a Sunday 1 pm kickoff.
edit -- he did a 10:30 zoom, heres the youtube link
https://www.youtube.com/watch?v=dQw4w9WgXcQ
edit - 8:51 min mark, RR is asked about Gibson but he says he intentionally doesnt speak w trainers until after the next day press conf so he doesnt have any info to give.