Since the window’s inception in 2002, the Blues have landed some big additions who’ve made a huge difference to their campaign.
And there’s been some big transfer misses at this time of year, too. Now we’re detailing those great signings and January duds in that time.
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1. Pele
Tony Adams had the likes of Yaya Toure lined up in 2009 but ended up with Pele who never made an appearance Photo: The News
2. Theofanis Gekas.
Top scorer in the Bundesliga but didn't get a look in under Tony Adams and Paul Hart Photo: Steve Reid
3. Steve Seddon
Made a massive impact after signing last January but a permanent deal never materialised Photo: Joe Pepler
4. Andy Cannon
Been at Pompey two years now and established himself as a key figure this season Photo: Daniel Chesterton