January is a notoriously difficult month for clubs to sign top-level players.
In order to strike a deal, clubs often pay over the odds to land their primary transfer targets. For example, just look at the extortionate fees Chelsea and Liverpool paid to sign Fernando Torres and Andy Carroll respectively in January 2011.
But there have been exceptions. Sometimes clubs manage to pull off a major coup - and all 20 Premier League teams will hope to do just that when the transfer window re-opens in less than a fortnight's time.
So, let's look back at the Premier League's best ever January signings - and don't forget to have your say in the comments' section below.
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