Glen Kamara and Adrien Tameze; two names who barely featured on the radar of Blades fans in the past, have now - thanks to the phenomenon that is the January transfer window - become hot property.
Kamara, of Rangers, is thought to be interesting his old club Arsenal while if United's reported interest in Tameze is legitimate, they may have to fight off the likes of West Ham, Southampton and Burnley.
Kamara has proved a revelation in Glasgow since a bargain £50,000 move to Ibrox from Dundee, and could move for £8m in January - a tidy profit in a short space of time for Rangers.
The 23-year-old began his career at Arsenal but couldn't make the breakthrough there, and instead moved down the levels to resurrect his career. Sound familiar? It is a path well-trodden by so many of Wilder's players at Bramall Lane. The latest is Jack Rodwell, who signed on Friday on a free transfer and made his debut in Sunday's FA Cup tie against AFC Fylde.
Those close to Kamara describe him as quiet and respectful, perhaps with a point to prove after leaving the Gunners as a youngster. He helped Finland qualify for this summer's European Championships, and could soon be on the radar of some of the continent's top clubs - if United do not get there first.
Tameze's story is also an interesting one. According to reports in France, where he plies his trade with OGC Nice, the midfielder turned down a €2m a year offer from Spartak Moscow - apparently 17 TIMES what he earns with Nice - "to stay, in an attempt to integrate himself into the new Ineos project".
Wilder, a keen believer in morals over money, would no doubt approve. Ineos is the chemical group owned by British billionaire Jim Ratcliffe, who bought Nice last year.
Spartak were prepared to pay around €10m for Tameze's services, and a host of English clubs are expected to inquire about his availability in the current window.