It doesn’t look like spider mites. It looks more mechanical (damaged by banging it into something on the move?) or chemical (spilled something on it?). Either way, it should be in full sun all day, be sure it’s getting enough water, and when it stabilizes I’d remove everything that is dead. Unless it continues to show more damage, it looks like it could pull through. post a follow-up photo in a week or two before you remove anything dead and let’s see if it has gotten worse or if the damage is contained to what we se in the OP.