Demba Ba is a doubt for the Europa League clash against Tottenham on Thursday.
Ba will undergo a scan today on his toe to reveal the extent of the damage.
The former Chelsea striker scored against Trabzonspor to take his tally for the season up to 16.
Ba joined Beşiktaş on a £6 million move from Chelsea this summer.
The powerful striker has now scored 16 times in 18 appearances in all competitions this season.
Ba scored against Spurs the last time Beşiktaş faced them in the Europa League.