did u see that they were doing partner stretches? so they were already at a high force level where it probably didn't take much to reach the tearing point.
GOD DAMN I audibly gasped when that shit happened!! The last chapter did not have me prepared whatsoever for anything that happened in this one. Holy shit.
I do believe is kinda absurd that he rip the arm very easy without showing any sign going all out and the little showing no pain, but other than that...
Holly shit !! That was quite chapter that escalated very quickly.