London's move into the highest tier of coronavirus restrictions from Wednesday will impact the sporting events in the city.
Up to 2,000 fans were allowed into football matches for the first time since March when London was initially placed in Tier 2 a fortnight ago following the second lockdown.
But the move into Tier 3 means once again the capital's stadiums will be empty.
West Ham hosted 2,000 fans when they played Manchester United at the London Stadium last weekend, but their home match against Crystal Palace on Wednesday night will be behind closed doors, as will the midweek matches at Arsenal and Fulham.
In fact the only midweek Premier League fixture to have a crowd will be the top-of-the-table clash at Anfield when Liverpool meet Tottenham.
As of Wednesday only Liverpool, Everton, Brighton and Southampton in the top flight will be allowed 2,000 fans until the restrictions are lifted.
The William Hill World Darts Championship, at London's Alexandra Palace, had planned to have 1,000 fans in attendance.
But the sport's biggest event, which begins on Tuesday, will now also be largely a fan-free zone.
Colourful dartist Peter Wright had earlier spoken about what it would mean to him to have fans attend games.
"The most important thing is that it is near Christmas and I get to go out in my Christmas outfit, up on stage in front of 1,000 people in the crowd, that is going to be more special, really, really special.
"You couldn't have it anywhere else really. If they had it at Milton Keynes or Coventry I would have gone nuts, I would have put myself in the loony bin.
"I have been down and miserable throughout this Covid, the crowds get me up and makes me feel happy. I am going out there for the fans and the youngsters that look up to me. I do it for them."
