Aussie football legend Harry Kewell has revealed no A-League clubs have ever reached out in relation to his coaching aspirations - and then recalled a comment from ex-Socceroos teammate Mark Bosnich that he won't forget anytime soon.

Kewell, 47, is currently the head coach of Hanoi FC in Vietnam after previous stints with the likes of Yokohama F. Marinos in Japan and Scottish giants Celtic, where he worked alongside Ange Postecoglou.

The former Leeds United and Liverpool star is happy to hone his craft in Asia - for now - but the fact no A-League clubs have been on the phone came as a surprise.

'I've never had one club ring me. Not one,' Kewell told Football 360.

'I love my football and wherever I go, I just want to make players better.'

Kewell then referenced a comment from Bosnich after the Socceroos great was linked to the Western Sydney Wanderers. 

'Bozza said I wasn't qualified enough....(and) this was when I was already doing well (overseas),' he said.

'I've got nothing against him, and Mark would probably not remember it, but I remember it.'

Daily Mail reached out to Bosnich for comment. 

Kewell signed with Leeds United as a teenager and later starred in the Premier League.

Primarily playing as a winger, Kewell made his debut for the Socceroos against Chile aged just 17.

He went on to play in two World Cups - and at club level, won the 2005 UEFA Champions League with Liverpool.

In 2012, Kewell was named the Greatest Ever Australian footballer at a gala dinner in Sydney.

'I'm humbled by the award and very grateful, especially given the number of amazing footballers this country has produced over the years,' Kewell said at the time.

'To be named amongst such great players in the greatest ever Australian team, both past and current, is something I will never forget.'