Noel Whelan claims that Celtic loanee Shane Duffy has been the “best signing ever” for Neil Lennon.

Speaking exclusively to Football Insider assistant editor Russell Edge, the former Leeds and Aberdeen striker admits it is “absolutely unbelievable” that the Northern Irish boss managed to prise the 28-year-old from Brighton earlier this summer.

Duffy, who put pen to paper on a season-long loan at Parkhead, confirmed to Sky Sports that he had offers to join Premier League sides but that he only had eyes for the Glasgow giants.

He made his third appearance for Neil Lennon’s side in today’s SPL clash against Livingston after netting in his opening two matches.

Whelan has lauded the “horribleness” that Duffy has brought to the Hoops’ backline and believes he ranks among Lennon’s best ever signings.

“I think Neil Lennon’s done absolutely unbelievable getting him up there,” Whelan told Football Insider.

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“I think it’s really important to have one of these physical defenders who’s a leader, who’s a  talker and you can see he’s focused on everything he does.

“Many other clubs looked at him but didn’t take the chance, Neil Lennon was adamant that he wanted him, that he needed that presence that he’s going to offer and the aggression he’s going to offer at centre half.

“He looks like he’s brought some kind of horribleness to their backline.”

Lennon has made a number of successful signings during his time at Parkhead alone, with the likes of Virgil van Dijk, Fraser Forster, Victor Wanyama, Tom Rogic and Leigh Griffiths all joining during his two spells in charge.

This summer the Bhoys have brought in Albian Ajeti, Vasilios Barkas and David Turnbull on permanent deals alongside Duffy’s loan.

In other Celtic news, Alex McLeish has revealed that James McFadden has been raving to him about a barely-seen Hoops player.