Tim Tszyu’s defeat to Sebastian Fundora shows he is no longer at a boxing crossroads

This isn’t how it was meant to end for Tim Tszyu.

His return to Las Vegas for the rematch against Sebastian Fundora, the site of his lowest ebb as a professional boxer, where he lost his long-sought world title, was supposed to be a return to triumph.

Vengeance, redemption, and glory were the…