Sheffield United boss Chris Wilder has confirmed they have submitted a bid for a centre-back amid links to Swansea City's Harry Darling.

The Star in Sheffield report that Wilder is "going through that dance" in the final throes of the January window and is keen to add to his list of recruits which so far includes Ben Brereton Diaz, Tom Cannon, Hamza Choudhury and Tom Cannon.

A centre-half looks to be their final piece of the jigsaw ahead of Monday's 11pm deadline having lost Harry Souttar to a season-ending Achilles’ injury. Sign up to our Swansea City newsletter here.

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Reports earlier in the week from the same outlet stated Darling, who is out of contract in south Wales at the end of the season, is a man of interest to the Blades. QPR's Jimmy Dunne is also on Wilder's radar.

“We're after a centre-back, there's no doubt about it,” Wilder told the local press. “We've made enquiries, we've made a bid for a player and going through that dance. But we've got alternatives under that.

“When all our players are fit and healthy, we had options off the bench before we lost two main actors in Ollie Arblaster and Harry Souttar. We were down two straightaway. They were done straightaway.

“So to get the numbers back up is amazing. Not surprising but the levels of intensity have gone up a notch so that benefits everyone. None of the players should shy away from that. We have to be as strong as the teams above us and below us.”

Swansea head coach Luke Williams would be loath to lose Darling, especially with Matt Grimes on the verge of completing his move to Coventry City.

The club are believed to be talking to the defender's camp over a possible extension in SA1.

"A player of Harry's quality, of course, there's going to be speculation all the time," Williams said this week. "But to my knowledge there's been no contact from anyone. So as far as I'm concerned Harry's staying with us until at least the end of the season.

"I work in football so you can expect anything to happen. But genuinely I've heard nothing at all substantial about an exit at all."

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Meanwhile, Football League World have linked Swansea with a move for Southampton winger Samuel Amo-Ameyaw before Monday's deadline.

A loan deal has been mooted for the 18-year-old, who the Saints are keen to see get more game-time having been in and around the first-team set-up this season.

A number of second-tier teams have been linked with his services.

And finally, Luke Cundle has passed his medical at Millwall ahead of a permanent move to The Den. Cundle had been on Swansea's radar with a view to a potential reunion with the Wolves man, but his destination now appears to be south London, not south Wales.