I will bump this up, just to emphasize how much the all mighty Grigor has fallen.
The top 3 of this generation was listed as: Nishikori, Raonic and Dimitrov, with Dimitorv considered the most talented and therefore the most upside potential.
Now, they ranked as follows:
6. Nishikori
9. Raonic
13. Goffin
15. Thiem
21. Paire
22. Tomic
25. Sock
29. Sousa
34. Johnson
35. Delbonis
36. Dimitrov
So now, he is not even a top 10 of his generation. And one thing is still misleading here, most of the posts are about his mental weakness which is preventing him to have better results.
IMO he has NOT WORKED HARD enough to improve either.
The top guys here in this list: Kei, Milos, David Goffin, Domi Thiem have improved visibly while Grigor has stagnated. Something to think about.