I'm 99% convinced the only reason he's still here is that Pep genuinely thinks he can get back to his better levels. I seriously doubt with his wages that his cheerleading would alone be enough to sway anyone to keep him. I understand the optimism because the Mendy we signed would be the top fullback in the world today if he was still at it in my opinion.
But then again he's seemingly not really made any progress in two years since he returned from his last major injury, and I have no idea why. He always seems to come back, play smart safe football until he's confident, then plays good football, then makes a mess out of dealing with a winger and that's the last we'll see of him in any capacity for six weeks.