Expect plenty of pictures of players signing contracts and holding up scarves before the January transfer window closes on Friday.
English Football League clubs have had their fair share of deadline-day successes and failures in recent seasons.
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We've looked back at some of the bigger deals that have gone through over the past five years and put together a quick quiz.
Got a couple of minutes to spare? Then give it a try!
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Find all the latest football transfers on our dedicated page.
Source: bbc.com