Its no rumour that Blades boss Chris Wilder is hunting for a new striker to bolster his squad ahead of the new season.
Ched Evans has told he can leave on loan to gain further First Team experience, leaving just Billy Sharp and Leon Clarke as the club's only leading strikers.
United were once linked with a move for Winnall when he was at Scunthorpe. Instead he joined Barnsley before signing for Wednesday 18 months ago.
The Blades have been linked with a number of strikers this summer but a move for Winnall from our closest rivals seems unlikely - but then I've heard stranger rumours which have turned out to be true.