The Scotland international has put in some promising performances during his first season at the KC Stadium.
The Glasgow-native also scored Scotland’s lone goal in November’s 3-1 defeat to England at Celtic Park, after which Tigers boss Steve Bruce admitted that he had already fielded phone calls from interested clubs.
“There has already been one or two with phone calls asking ‘to keep me informed’,” Bruce told the Daily Mail. “That’s always the first stage. I had it with [Wilson] Palacios when I was at Wigan and then [Antonio] Valencia when he went off to Man United. And if this kid keeps performing the way he is then it might become inevitable.
“Look at Luke Shaw – he only played one year, didn’t he? That’s how crazy it is: £32million, you could buy the Humber Bridge for that!”
Now Sherwood is said to be keen on bringing the five-time capped international to the West Midlands, as he looks to address Villa’s clear weakness at left-back.
Summer signing Aly Cissokho proved solid but unspectacular before going down with groin injury which has kept him out of first-team action for the past two months, while Kieran Richardson has flattered to deceive while deputising for the Frenchman.
Right-backs Alan Hutton and Matthew Lowton have even filled in at the position due to injuries, while the lack of cover also forced Sherwood to draft the inexperienced Lewis Kinsella into the senior squad back in March.
A bid for Robertson, who has also been used in midfield this season, would depend on Premier League survival, though, while Villa are expected to face competition from a number of other big clubs in the event of a proposed approach.