Speaking to Celtic TV after the game, the Celtic manager said: “We have obviously just started pre-season, so the ones that played today are the ones that came in earlier and had an extra week under their belt.

“We’ve had a good couple of days here, the boys have been working hard and they’re not going into the game feeling fresh because we’re pushing them hard.

'Considering all that, the intent and effort were good, particularly in the first half, so I’m pleased with the overall effort.'

“These games are about everything - your fitness, playing our football, the standards we set, everything’s included.

“Irrespective of it being the first game or the last game of pre-season, you want to make a mark with everything we do and for the most part it was positive.”

The intensity of training will only continue over the course of the next week, as the Bhoys get set to play Rapid Vienna on Saturday before a trip to the Czech Republic.

Travelling north from the training camp to the Austrian capital to face Rapid will see a number of the players who featured in June’s international games return to the fold.

The 7-0 victory over Wiener Viktoria allowed the manager to test some of the younger ones in the group, and he’s been pleased with the work they and the rest of the squad have put in so far.

He added: “It’s been good through the pre-season, we’ve had guys coming in at different stages, so this is a window of opportunity for some of the younger guys to come in and experience the environment and for us to have a look at them.

“They’ve all acquitted themselves well and they all realise what’s required at this level and they’ve been solid contributors.

'It doesn’t change for us irrespective of who the opposition is. We need to stick to our standards and levels and we have some hard work to put in with the boys and they’re willing participants in that.'

“They want it and know this is the time for us to lay a strong foundation for what’s ahead. We’ve had a good couple of days training and hopefully we have a good strong finish to the week.”

Ange Postecoglou: First game of pre-season was positive but the hard work just begins