The 24-year-old became an increasingly important fixture in the starting Xi during Mauricio Pochettino’s first season at White Hart Lane, producing strong enough form to earn a debut cap for England in March 2015.
But the rise of Dele Alli has seen the energetic starlet slump down the pecking order this season, managing just 22 appearances across all competitions and only six starts in the Premier League.
That has created doubts over Mason’s future, despite signing a five-year contract last season, that London rivals Crystal Palace appear ready to capitalise on.
Indeed, London Evening Standard claim the Eagles have identified the Enfield-born youngster as a potential target ahead of the summer transfer window, with Alan Pardew looking to enhance his options in midfield.
The Selhurst Park gaffer wants to improve his side’s efforts in possession, having averaged just 46.8% in the Premier League this season.