Belgian midfielder Mousa Dembele is facing a fitness battle to be available for Tottenham Hotspur's match with Arsenal in 10 days time.
SkySports report it is likely he will not be fit for the fixture, between two teams vying to win this season's Premier League title.
The report states: "Dembele, meanwhile, faces 10 days to two weeks on the sidelines with the groin strain that forced him off against Palace, which is likely to also rule him out of next week's London derbies with West Ham and Arsenal."
Dembele has already been ruled out of Thursday night's Europa League game against Fiorentina, as well as this weekend's Premier League game with Swansea City.
Spurs travel to West Ham in midweek before the North London derby with Arsenal the following weekend.
Dembele was one of Tottenham's best players at The Emirates when the sides drew 1-1 earlier this season, and could join Jan Vertonghen as another who started that fixture who will miss the return game, with his international colleague still sidelined with a knee injury.
Arsenal legend Ian Wright was left in awe of Dembele's display earlier in the season, telling n BBC Radio 5 Live's 606: "I was watching Dembele today and when you look into that midfield, he is a monster in there."