Fog is rarely an issue for English football in the 21st century, with Crystal Palace not having a game postponed due to it in years.
However, in their 0-0 draw with Manchester United, the thousands confined to watching on TV were made to squint as the ball rolled along the far touchline, almost disappearing in the fog around the dugout.
Thankfully the game was able to continue without much issue, but the dense cloud hanging over Selhurst Park provided a unique and atmospheric sight.
Over time, of course, fog has provided a much more real threat to matches in England - particularly during the 1950s, when London was immersed in 'pea souper' smogs.