Kevin Campbell has called on Tottenham to tie Son Heung-Min to a blockbuster new deal – before it’s too late.

Speaking exclusively to Football Insider, the former Arsenal striker and well-connected father of Stoke City ace Tyrese Campbell hailed Son as the “most consistent player” at Spurs.

Jose Mourinho has revealed that the north Londoners are working on agreeing a new long-term deal with the South Korea sensation.

Football Insider understands Tottenham are offering Son a lucrative new deal worth £200,000-a-week plus performance-related bonuses, totalling more than £50m.

His current deal runs until 2023 but the club hierarchy want to tie him down for a number of years beyond that.

Son is a worldbeater who deserves to be rewarded, according a product of their bitter rivals Arsenal.

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“He should’ve been signed up with a new contract a long time ago,” Campbell told Football Insider.

“He’s been their most consistent player. Sign him up definitely, that’s what I’d say. If you don’t, he’ll be gone.”

Son’s reputation as a Premier League and global sensation has been further enhanced by his sensational start to the new campaign.

The 89-times international has already banged in 10 goals from 11 matches in all competitions as well as supplied four assists.

His partnership with Kane is being hailed in many quarters as the key to unlocking a title pursuit that had appeared highly unlikely only a few months ago.

In other news, it can be revealed how Tottenham have made a huge saving on blockbuster new deal thanks to insider information.