Actually I remember now that he was the central figure in a Youtube documentary on the "emergence" of Chinese football I watched awhile ago, in which he was interviewed in his opulent apartment overlooking the smog-choked landscape of whatever city he was in, glumly mouthing platitudes about the development of the game there and looking as isolated and lonely as a person possibly could.
As a fun year or two of adventure when the top level of the game is no longer something you can be at the center of anymore, I can totally understand the appeal of heading to one of these far-flung leagues, I'm sure I would choose to do the same. But to play out your mid-20's as just a zoo exhibit trinket for the reward of yet more money your children and grandchildren will never need, it's fucking depressing.