A Quick Post  Jo-Wilfried Tsonga improves his chances of playing the Year End Championships/Masters Cup/ATP World Championships/Masters (could they stick with one name?).  He defeated Juan Martin del Potro 6-7, 6-3, 6-4 in Vienna.  I was pulling for Delpo, but Tsonga has had a really strong year since his Queen’s Club runner-up finish.  Delpo has…