Can Palace avoid unlucky 13?published at 18:54 Greenwich Mean Time 12 February
Crystal Palace v Chelsea (20:00 GMT)
Crystal Palace go into this contest against Chelsea hoping to end a run of 12 straight defeats against their London rivals.
It is the hosts longest losing run against a single team in league history. So is an unlucky number 13 also on the cards?
Roy Hodgson's injury-hit squad have also failed to keep a clean sheet in their 12 previous Premier League matches - letting in 27 goals in these matches.
Talk about symmetry.