While the Lilywhites, who landed no fewer than eight signings last month can't buy or loan any new players until the summer, they could still bring in a free agent or two, should they wish to bolster their squad further.
Here's a look at some of the intriguing options still out there, who could yet be picked up:
9. Claudio Yacob
Once a Premier League stalwart, the veteran midfielder could add some serious class to any second-tier side. He's been looking for a new side since leaving Nottingham Forest in January 2020. Photo: Catherine Ivill
10. Ezequiel Schelotto
His Brighton career came to an end after the club brought in higher-calibre options, but he'd definitely do a job in the Championship. The full-back, formerly of Sporting CP and Atalanta, even got a senior cap for Italy back in 2012. Photo: Mike Hewitt
11. Cuco Martina
Championship experience? Tick. An EFL Cup runners-up medal? Tick. The 31-year-old right-back, who played in the second tier with Stoke on loan back in 2019, is still up for grabs after leaving Everton last June. Photo: Lynne Cameron
12. Yaya Sanogo
He claim close to joining Middlesbrough back in the summer, but a failed medical scuppered the deal. The former Arsenal starlet, who was a youth star with France, is clearly willing to play football at Championship level. Photo: PASCAL PAVANI