Wasn’t torn, he got kicked in the throat in a match in Mexico and stopped breathing and they cut through his lat to repair some stuff.
etiher way it cut off and gone pretty much...
(btw a good surgeun cuts along the fibers so this doesn't happen)
... and he's torn a bunch of other muscles there, biceps and what not, including his inner chest which has a condition named after him even,, namely the "Steinberger Chest"