Reminds me of Eduardo (former Arsenal player) having his leg snapped in half when an opposition player came flying in and absolutely murdered him.
Was out for more than 12 months, just couldn't get his confidence back and wasn't the same player .. so they let him go.
He's done better at his new team (in a new country), but hasn't hit the heights that many expected of him pre-broken leg.
With all long-term injuries, the rough theory to work by is "It takes twice as long as the time you spent out of the game to get back to the same stage you were at before your injury."
So if he's out for a year, it will take about two years to get back to the same stage he was at last week .. essentially, that's three years of development gone.
It's a real shame for him, and I feel so sorry for him too .. he seems like a really nice person, didn't deserve this at all and he would be so shattered.
All the best to Yow Yeh in his recovery, and to his family as they attempt to help him rehabilitate mentally.