Well that's a bit embarrassing. Chelsea's official Facebook page posted photos of their season-ending match at Cardiff City, and paid tribute to the Blues' traveling support. Unfortunately, the accompanying photo was of the wrong "Blues."
In case you're wondering, those are clearly Cardiff City fans. And while it does look like "superb support," that unlucky social media manager misidentified the source.
Stunningly, this post survived over 21 hours before finally being taken down.