Ahead of the conclusion of our Europa League quarter-final tie with Slavia Prague tonight, we have a quiz for you on Chelsea's record in the last eight of European competitions.
You have to go all the way back to 1959 for our very first continental quarter-final, in the Inter-Cities Fairs Cup, and since then we have contested 16 more, including this month's with Slavia.
We have eight questions on our last-eight past for you to test your knowledge, with a couple of the harder ones worth two points each! You have 30 seconds on each question, and remember the first click counts as your answer!