"Au fait, la règle qui qualifie automatiquement les gagnants de GC dans le top 20 pour le Masters existe toujours ?"
Selection List. The selection list for the event shall be:
a) The top seven (7) players in the Emirates ATP Rankings as of the Monday
after the last ATP World Tour tournament of the calendar year; followed by
b) Up to two (2) Grand Slam winners of that year, in order of their positions,
positioned between eight (8) and twenty (20) in the Emirates ATP Rankings
as of that Monday; followed by
c) Players positioned eight (8) and below in the Emirates ATP Rankings as of
that Monday.
( http://www.atpworldtour.cur.com/Corporate/Rulebook.aspx , IV)
Techniquement c'est pas tout à fait automatique. Mais bon, pour qu'il y ait deux vainqueurs de GC qui finissent hors top 7, faut vraiment y aller.