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The summer transfer window officially opened on Wednesday.

And Liverpool were straight into action, unveiling Nathaniel Clyne and Adam Bogdan as their first official signings of the summer while Joe Gomez, James Milner, Danny Ings and Firmino are also already confirmed as heading to Anfield.

The present transfer window system has been in operation since 2002.

But how much do you know about Liverpool's transfer dealings?

We've looked back at The Reds' dealings since the new system came into being - with a few blasts from the past to really test you.

Do you know who Liverpool's first £200,000 footballer was? You do? You know that David Johnson arrived from Ipswich Town for that sum in the 1970s? Good. Because that ISN'T in our dirty dozen.

But there's plenty of other testers. So good Luck!

And don't forget to share your results on social media and take on your mates.