Sasha!

Alexander Grischuk won the Hamburg Grand Prix, greatly increasing his chances of qualifying for the Candidates Tournament. If he doesn’t emerge as the automatic qualifier from the Grand Prix, he will be the favorite to receive a wild card selection from the Russian Organizers.

Here are the current standings of the FIDE Grand Prix, with only Jerusalem's left to play at the beginning of December:

Grischuk will not play in Israel, whereas his direct opponents for the final win in the FIDE PG - Mamedyarov and Vachier-Lagrave, will be in Jerusalem. 
This means that in theory, Sasha may be thrown out of the first two places, which assure the participation in the Candidates' 2020.
Of course, it would take a stellar performance by both his direct rivals, given the super-strong field in Jerusalem: 
 

FIDE GP in Jerusalem, Israel: lineup

Maxime Vachier-Lagrave		2777
Anish Giri		2776
Ian Nepomniachtchi		2773
Levon Aronian		2772
Shahriyar Mamedyarov		2772
Teimour Radjabov		2767
Wesley So		2760
Sergey Karjakin		2754
Yangyi Yu		2753
Veselin Topalov		2736
Radoslav Wojtaszek		2728
Yi Wei		2724
David Navara		2703
Dmitry Jakovenko		2691

Grischuk moved into the final match by defeating Maxime Vachier-Lagrave, dealing a blow to the Frenchman’s qualification hopes in the process.
Games annotated by GM Joel Benjamin

J.K. Duda found himself on the brink of elimination in his semifinal after losing to Daniil Dubov in the first playoff game. He was able to turn the tables in the next game - with Black - and ultimately advance. In the final Duda experienced things from the other side. He won the first playoff game, and the third game overall, but saw Grischuk turn the tables on him. In the next two games, Duda got poor positions from the opening.