Norwich are waiting anxiously for Covid-19 results ahead of their clash with Manchester United after Premier League sides were told to return to emergency protocols to limit the spread of the virus.

Tottenham's Europa League Conference game with Rennes on Thursday was postponed after Spurs reported that eight players and five members of staff had tested positive.

Sunday's match between Brighton and Tottenham is also off as fears rise over the potential impact of the surging Omicron variant on the English top-flight, AFP reports.