The Uruguay international is being linked with a move to Villa Park as Steven Gerrard looks to bolster his squad before next Monday's transfer deadline.
Sky Sports journalist Rob Dorsett has claimed a sell-on clause retained by Bentancur's former club, Boca Juniors, is complicating negotiations.
"No formal bid so far, but it's thought a sell-on clause inserted by his former club Boca Juniors is complicating the deal.
"If Villa can get him for less than £20m, it's a snip."
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