Ange Postecoglou will manage Celtic for the 100th time tonight (Picture: SNS)

Ange Postecoglou is proud of how far down the road his Celtic team have travelled as he prepares for his 100th game in charge.

But the former Australia head coach says he won’t set a destination point as he seeks continual improvement.

Postecoglou recently celebrated his third trophy with Celtic after regaining the Viaplay Cup, and two victories over Hearts this week would leave him on course for a potential treble.

The century of games comes with a Premiership encounter against the Edinburgh side tonight in Glasgow.

Postecoglou said: ‘With the amount of games you have with this club it’s not that long in terms of time but I guess 100 games is fairly significant.

‘It would have been pretty long odds when I took the job that I’d reach it, so I guess that’s something.’

While there were sceptics, Postecoglou never had any self-doubt as he dismissed suggestions he might have exceeded his own expectations.

‘I wouldn’t have taken a job if I thought I wasn’t going to do well,’ he said. ‘And I have said a few times, that’s the responsibility of being at this club, you understand that tangible success in terms of trophies is an expectation. I understood that, I knew I had to deliver that fairly quickly if I was going to be here for 100 games.

‘Not because of the club’s stance, but I know that that’s what this club demands.

Celtic’s James Forrest faces several weeks out through injury (Picture: PA)

‘But my focus is always around the football, the kind of team we want to be, and way we want to play.

‘The kind of football we have played has probably been the thing that has pleased me the most.’

When asked how far down the road to achieving his aims he was, the 57-year-old said: ‘It’s an ever-vanishing target. If I think I am close, it just gets further away. That’s how I have approached my managerial career at every club.