We're nearing the end of the 14th year in the 21st century, in which football has grown in to the most popular sport in the world.
Not only have we seen some fantastic moments on the pitch, we have also seen some incredible moments off of it - mainly the transfer window.
To be the best team, you have to have the best player and the transfer market is the quickest way to get to the top. Therefore, the market for players has exploded with millions being chucked around for distinctly average players.
But there have been some inspirational signings since 2000 - cheap, shrewd and outright ridiculous.
Here we take a look at the iconic - not the biggest - deals of the century so far.