If it had happened to Giles, we'd be waiting until the opening of the 2029 season (although we would be hearing a lot about how great he was looking in practice and we would see him looking ripped on twitter/instagram)
I did a quick check and the only mention of a grade 3 sprain was from Jason Jones who quoted "league sources." I didn't see anything from the team that specified a grade 3.
Not too concerned with what reported tbh. I'm just glad he's looking good.