Both Aston Villa and Sheffield United are looking to strengthen their squads following promotion.

Some fans of Preston North End, Aston Villa and Sheffield United suspect that either the Villans or Blades are behind the mystery enquiry for Lilywhites winger, Callum Robinson.
The Lancashire Evening Post understands that an unnamed Premier League club have asked about Robinson’s availability – although it is not thought to be his former suitors, Bournemouth.
And that leaves either Aston Villa – Robinson’s former club – as Sheffield United, according to the following Twitter users.
Aston Villa became the final club to enrol as Premier League members ahead of the new campaign, following Sheffield United and Norwich City.
And the Villans have already snapped up one rumoured Blades target in the shape of Jota Peleteiro, the former Birmingham City playmaker.

Robinson scored or made 17 goals in 28 games for Preston last season, but is about to enter the final 12 months of his contract at Deepdale and there is no sign yet of him signing a renewal.
Are Aston Villa or Sheffield United behind the mystery enquiry?
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