Liverpool shouldn't mess around. Without being disrespectul, he's not solely about a move to Liverpool. He wants a move to the Prem. United is a favoured club (historical interview, no idea what he means by favoured), also would be open to Chelsea, and is obviously very open to Liverpool. Short version is, he wants to play in the Premier League, and he wants out as soon as possible. Liverpool will in front, but shouldn't hang around in case others become interested. Because Shakthar would LOVE a bidding war, and will certainly hold out.