Some interesting suggestions there....apart from Connor Whickham
Alejandro Pozuelo
The playmaker is out of contract with Inter Miami and although there are ongoing talks regarding a new deal, he is currently a free agent as things stand. The 31-year-old has played for the likes of Real Betis, Swansea City and Genk.
The Spaniard is naturally right-footed but is adept with both feet and is incredibly versatile, allowing him to slot in almost anywhere within midfield.
Salomon Rondon
Having left Everton in December, Rondon has an impressive CV that includes the likes of Newcastle United and Zenit Saint Petersburg - where he would score the winning goal for his Russian side in a Champions League clash against Borussia Dortmund.
The 33-year-old striker is now without a club and would help bolster United's attacking options for the remainder of the season.
Cristian Tello
The former Barcelona and Real Betis star most recently featured in the MLS for Los Angeles FC last term. There is a slight complication surrounding a move for Tello as although he is currently out of contract with the American side, it is understood that they have an 'option' over an extension to his deal.
United could certainly call LAFC's bluff and enter negotiations with the man who made more than 50 appearances for Barcelona, yet it seems dependent on whether or not Gareth Bale's former side decide to exercise their option for a further a year.
Jurgen Locadia
The 29-year-old free agent made more than 100 appearances at PSV during a seven year spell before eventually moving to England to join Brighton and Hove Albion in 2018.
He would score on his Premier League debut, but unfortunately his time on the south coast was a disappointing one that failed to live up to his £15million price-tag.
Jose Izquierdo
Another former Seagull, Izquierdo spent four years at Brighton and the 30-year-old winger is now looking for a new club. The Colombian was named as the best player in the Belgian top-flight in 2016 during his time with Club Brugge and the Blades could look to entice him to the Championship for nothing this month.
Connor Wickham
A name familiar to many in England, Wickham's short-term deal with Forest Green Rovers came to an end in January. Having played for the likes of Crystal Palace, Sunderland and Sheffield Wednesday, the 29-year-old striker could prove to be a low-risk addition for the club.
Izzy Brown
Brown spent the 2021/22 season with Preston North End but failed to make a single appearance for the Championship club after suffering from an Achilles injury that kept him out for large parts of the season. The former Chelsea man is now looking for his 11th club and will be available for free in January.
Hatem Ben Arfa
Ben Arfa has always been a showman and the Blades could be looking for the former Paris Saint-Germain to use his trickery at Bramall Lane this season. The 35-year-old left Lille last year under a bit of a cloud after an apparent bust-up with the team's manager, something that Heckingbottom may well keep in mind before deciding to give the move a green light.
