There's actually someone on Twitter suggesting it's a potential TJ.
I saw some posts that there is a tear, but not a full one. I have no idea how reliable that info is though.
I also have no idea how that affects a QB. We see baseball players, including pitchers, keep throwing with partial tears, but there's no contact like with football. I guess he could play till it blows out, but if that happens in December, he loses all of next year too.