is a doubt for 's Champions League clash with after the Brazilian broke a bone in his foot and sprained his ankle.
During PSG's victory over rivals Marseille on Sunday, the world's most expensive player left the field in tears and on a stretcher following an aerial challenge with Bouna Sarr.
He underwent medical tests in the wake of their 3-0 victory in Le Classique and the that the Brazilian striker has damaged his right ankle and broken the fifth metatarsal in his foot.
The nasty injury means Neymar could now miss the second leg of PSG's Champions League blockbuster against Madrid next week.
Unai Emery's side trail 3-1 from the last-16 first leg in Spain and may have to try and overturn the deficit without their most expensive asset.