Antonio Conte's Tottenham faces a Covid outbreak.
According to reports from the Evening Standard website, at least half a dozen players and two members of the technical staff have tested positive for the coronavirus.
Further buffers are planned for the day today.
Spurs are expected to host Rennes for a Conference League match on Thursday (they are vying for second place in the group) while on Sunday they will meet Brighton in the Premier League, before facing off against Leicester and Liverpool next week.
According to UEFA rules, the day after tomorrow's match would be at risk only if the team remained with less than 13 players and without any goalkeeper.
With regard to league matches, the company could ask the league for a postponement.