Leeds want to add to their growing American contingent by snapping up McKennie and made their move after speaking with boss Jesse Marsch.
They are trying to sign McKennie from Juventus on loan with an option to buy, but have not yet managed to convince the Bianconeri on the structure of the deal.
And while there is no deal done, Leeds are at risk of seeing their swoop for the midfielder hijacked.
Nottingham Forest are now looking at potentially hijacking the deal for...