The world men's tennis number one Novak Djokovic is in doubt for next week's Monte Carlo Masters after damaging his ankle on Davis Cup duty over the weekend.
The 25-year-old Serb twisted his right ankle during his win over Sam Querrey of the United States in Idaho.
A statement says an MRI scan has revealed a joint strain which requires therapy and strict rest.
On Twitter, Djokovic says he's doing his best to recover in time for upcoming tournaments.
