The 25-year-old emerged as a key player for the Lilywhites during Mauricio Pochettino’s first season at White Hart Lane, registering 37 appearances across all competitions.
That saw Mason claim a debut England cap in March 2015, but he was reduced to a bit-part role last term with Eric Dier, Dele Alli and Mousa Dembele taking precedent in the middle of the park.
The Sun claim Spurs are now ready to sell the 5 foot 9 centre-mid to make way for new recruits, with Hull City emerging as his likeliest suitors.
The Tigers are prepared to pay a £10million fee to sign Mason, in a deal that would see him reunited with Tottenham old boys Tom Huddlestone and Jake Livermore.
Steve Bruce’s side sealed promotion back to the Premier League last season with a 1-0 win over Sheffield Wednesday in the Championship playoff final.