Paul Stewart fears Tottenham Hotspur may face a challenge in keeping Son Heung-Min if Harry Kane forces a move out of the club.
Star striker Kane is looking to leave Spurs before the transfer window closes in a bid to boost his chances of winning more silverware.
The England captain has hit the headlines for failing to return to Hotspur Way for pre-season training this week and Manchester City are keen to persuade Spurs chairman Daniel Levy to sell last season’s Premier League top goalscorer.
While Kane is itching to leave north London, Son committed his future to Spurs by penning a new four-year deal last month.
The South Korea international scored 22 goals and registered 17 assists in 51 appearances last term.
Son’s fine form led to speculation that Bundesliga giants Bayern Munich were looking to make a move and potentially seal his return to Germany having already featured for Hamburg and Bayer Leverkusen prior to heading to the Premier League.
Former Spurs ace Stewart fears signing a new contract could count for little if a major force looks to sign Son.
He exclusively told The Transfer Tavern: “When Harry stated his intention to leave, I said Spurs have got to be careful because people will be coming in for Son.
“Son was outstanding last season and he would be disappointed in the departure of Harry.
“It wouldn’t surprise me if one of the big teams in Europe came knocking on the door for Son.”
