Leeds United's Premier League game against Aston Villa on Tuesday has been postponed because of Covid-19 cases at the Yorkshire club.
Leeds' game at Liverpool on 26 December had already been called off.
A club statement said there had been no new Covid cases but the majority of those who had already tested positive were still isolating so there were not enough "recognised first-team players".
In total, 14 games in England's top flight have been postponed in December.
More to follow.