Aiden O'Brien joined Pompey on deadline day from Sunderland and was one of 31 signings completed by League One clubs on the final day of the window.

DONE DEALS: The deadline day signings involving Portsmouth, Sunderland, Charlton Athletic, Ipswich Town and Wigan Athletic before the window shut

The January transfer window reached its climax on Monday with the market slamming shut at 11pm.

By Pepe Lacey
Tuesday, 1st February 2022, 7:30 pm
Updated Tuesday, 1st February 2022, 7:37 pm

Although Pompey were in action on deadline day, it didn’t stop the Fratton Park outfit completing the signing of Aiden O’Brien on a free transfer until the end of the season.

In total there were 31 transfers across League One on the final day of the window as clubs hurried to finalise deals for their new men.

Here are all of the acquisitions made on deadline day across the third tier.

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