Here's a look at nine quality Championship players who the Blades could dip into the second tier market for, as they look to strengthen their squad further in the upcoming summer transfer window.
1. Matty Cash - Nottingham Forest
The tenacious right-back is due a big move this summer, after spearheading his side's push for promotion this season. The dribbling dynamo could give George Baldock some competition for his starting spot. (Photo by Nathan Stirk/Getty Images) Photo: Nathan Stirk
2. Jack Butland - Stoke City
If United can't get Dean Henderson back for another loan spell, Butland could be an ideal replacement. He's still young in goalkeeping terms, and will champing at the bit for more top tier football. (Photo by Nathan Stirk/Getty Images) Photo: Nathan Stirk
3. Antonee Robinson - Wigan Athletic
The 22-year-old left-back came so close to sensationally joining AC Milan in January, and he's likely to be on the move in the summer. He has the potential to be a star in the future, and could be lured to Bramall Lane with the promise of European football. (Photo by Lewis Storey/Getty Images) Photo: Lewis Storey
4. Aleksandar Mitrovic - Fulham
The Blades have been sensational this season, and a merciless goal-machine would take them to the next level. Mitro has been tearing it up in the second tier, and has 23 league goals to his name. (Photo by Alex Pantling/Getty Images) Photo: Alex Pantling