The Magpies have already seen a bid for the Brighton and Hove Albion star rejected.
The two Tottenham academy stars have featured prominently in preseason, and King had encouraging things to say about the players.
HITC Sport understands Queens Park Rangers defender is set for loan move.
Should Tottenham consider any of these Stoke, Sunderland or Southampton attackers?
The forward joined Liverpool from Southampton earlier this summer.
On the eve of the Premier League season Watford have been boosted with the news star striker Odion Ighalo has signed a new five-year contract extension.
The full-back hopes his ball-playing style will fit in perfectly at Elland Road.
The Spurs boss would not talk specifically about the French winger.
The Argentine striker has agreed a season-long loan move to the London Stadium.
The Foxes defender has been linked with a move to Reading