The final list, containing the 23 players who will fly to Japan for the competition, will be submitted to Fifa on November 28.
Ganso, who is in the final stages of his recovery from a thigh problem, has been included in the squad, just like Barcelona and Real Madrid target Neymar.
Santos will be looking at this competition as a way to salvage a season that has derailed since they won the Copa Libertadores as they sit 10th in the league, 15 points off the top of the table.
Here is Santos' provisional list for the Club World Cup, which will run from December 8-18:
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