If Nalby does well here and even better to qualify(very unlikely)
Do you think there any chance he actually goes to China?
Or he is 100% sure he won't even qualified, focus on Davis Cup?
Anyway, good luck.
There is a theoretical chance that if he reaches a final he can get the 8th spot. For that to happen Simon and Ferrer should lose in R2, Blake and Wawrinka doesn't reach semis, Tsonga and Gonzalez doesn't reach F, Verdasco, Monfils, Soderling and Almagro doesn't win the whole thing. Even if he gets there (which is very unlikely considering his draw), I think that DC is much more important to him then Shanghai. DC final is just 5 days after the TMC final.