Tottenham have completed the “best business of the summer” by rebuffing elite-club interest in Christian Eriksen, according to Noel Whelan.

Speaking exclusively to Football Insider, the ex-Leeds United and Coventry City striker hailed Spurs for keeping hold of the “irreplaceable” Danish playmaker on deadline day.

Mauricio Pochettino has admitted on multiple occasions in recent weeks that Eriksen could leave Tottenham this summer and admitted even on Sunday that it was still a possibility.

Whelan is convinced that Eriksen can be the difference between Tottenham challenging for trophies and slipping out of the top-four reckoning.

“Tottenham have done well to keep hold of Eriksen, Toby Alderweireld, Jan Vertonghen and Danny Rose, they are all massive players,” Whelan told Football Insider. “But Eriksen is the most important. He’s irreplaceable.

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“It’s the best business of the summer by any Premier League club. Eriksen’s that important. To get rid of him would be ludicrous. He is the one player at Tottenham who can open up a team with his passing.

“That’s why Barcelona and Real Madrid wanted him. If Eriksen leaves, I would worry about Tottenham getting a top-four place. With him, they can get top four and challenge for trophies.

“Tottenham have spent quite well this summer, but I still think they are a window behind other teams, and the squad is still quite thin.

“They needed to keep all their stars to compete in the Premier League and Champions League at the same time, and luckily they have done so.”

Eriksen was demoted to the bench for two of Spurs’ four league matches this season, but returned to the starting XI to deliver an impressive display in Sunday’s 2-2 draw at Arsenal.

In other Spurs news, it can be REVEALED that Pochettino is fuming after Tottenham last-gasp offer is trumped.