Chelsea's lavish spending has often caused quite the debate.
From the Roman Abramovich era to the current splashing seen by Todd Boehly, the Blues have never been shy to bring some of the world's best talent to Stamford Bridge.
But how many of them could you name if we provided the team they signed from and the year they did so?
Scroll down to indulge yourselves in FourFourTwo's latest quiz.
We're giving you ten minutes to name Chelsea's 50 most expensive signings and we've even given you the fee, the side they signed from and the season it happened.
Smashed it? Or was it a tough day at the office? Whatever your score, be sure to tweet it to @FourFourTwo and get your mates involved to see who comes out on top.
On your marks, get set, go!
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Handpicked quizzes we know youll love
All right, Blue through and through, eh? Now that you've aced our Chelsea quiz, fancy putting that football brain of yours through a few more paces? We've got a cracking selection lined up.
For a fiery memory test, see if you can recall every single player involved in that unforgettable 'Battle of the Bridge' clash between Chelsea and Tottenham back in 2016? Or for a nostalgic trip back to a Chelsea FA Cup triumph, see if you can remember the Blues' starting XI from the final against Aston Villa in 2000.
We have plenty beyond Stamford Bridge, 'n' all. How about testing your knowledge of international football's heavy hitters by trying to name every nation to have reached the semi-finals of a major tournament? If your appreciation extends to spectacular goals, why not have a go at naming every single BBC Goal of the Season winner in the Premier League era?
Finally, if European comebacks and goalscoring feats are your thing, try your hand at naming every club to have pulled off a Champions League comeback victory or every player to have bagged a Champions League hat-trick in the 21st Century?
