Chelsea just love an away trip to Sunderland - or so it would seem.
The Blues have won seven, drawn one and lost one of their nine matches away to the Black Cats over the last 10 seasons.
That's the equivalent of 22 points out of a possible 27, their most successful record against a club who they've played away against at least five times over that period.
GetWestLondon has taken a look back at each current top flight club's record on the road for the last 10 campaigns to see where they've enjoyed their most, and the least, success.
We've judged success by using the percentage of possible points won and have also only taken matches that have taken place at least five times.
Chelsea's happiest and unhappiest Premier League hunting grounds - percentage of points taken
Best - Sunderland
81%
Worst - Man United
31%
For example, Arsenal have played Aston Villa away 10 times in all competitions over the last 10 seasons. That works out at the equivalent of 30 possible points to be won if you assume three for a win and one for a draw.
The Gunners have won seven of those matches and drawn three which is the equivalent of winning 24 points. That's 80 per cent of the possible 30, which makes Villa Park Arsenal's happiest hunting ground.
Their worst record is away to Manchester United where they have won the equivalent of just 19% of the 42 points that they could have won.
Chelsea return to action at Bournemouth in the Premier League on Saturday.
The full results for each club are as follows:
Arsenal
Best: Aston Villa - 80%
Worst: Manchester United - 19%
Aston Villa
Best: Norwich/Sunderland - 60%
Worst: Manchester United - 9%
Bournemouth - haven't played any of the current Premier League sides five or more times over the last 10 seasons.
Chelsea
Best: Sunderland - 81%
Worst: Manchester United - 31%
Crystal Palace
Best: Norwich - 67%
Worst: Leicester - 33%
Everton
Best: West Ham - 73%
Worst: Arsenal - 12%
Leicester
Best: West Brom - 60%
Worst: Southampton - 22%
Liverpool
Best: Aston Villa - 77%
Worst: Manchester United - 18%
Man City
Best: Newcastle - 87%
Worst: Liverpool - 15%
Man United
Best: Southampton - 89%
Worst: Chelsea - 26%
Newcastle
Best: Crystal Palace - 67%
Worst: Liverpool - 4%
Norwich
Best: West Brom - 71%
Worst: Chelsea - 7%
Southampton
Best: Swansea - 67%
Worst: Man City - 0%
Stoke
Best: West Brom - 70%
Worst: Man United/Arsenal - 0%
Sunderland
Best: Southampton - 53%
Worst: Man City - 7%
Swansea
Best: Aston Villa - 67%
Worst: Tottenham/Man City - 0%
Tottenham
Best: Swansea/Aston Villa - 73%
Worst: Chelsea - 12%
Watford
Best: Crystal Palace - 48%
Worst: Leicester - 17%
West Brom
Best: Leicester - 78%
Worst: Man City - 0%
West Ham
Best: Sunderland - 44%
Worst: Chelsea - 11%