Manchester City manager Pep Guardiola said on Friday the club had cancelled their Christmas Party because of the resurgent threat of Covid-19 and he urged his players to be careful when they have gatherings at home with their families.
Tottenham's Europa League Conference game with Rennes on Thursday was postponed - as has their English Premier League game against Brighton on Sunday - after up to 13 Spurs players and staff were struck down by coronavirus.
Another Premier League club, Leicester, have also lost several players to Covid.