“The boys have worked hard and probably felt the effects of it in today’s game at times, but overall it was a positive week.

“We got some minutes into the players, particularly Callum McGregor and Carl Starfelt who haven’t played a lot recently and they have all come through it really well.

“We gave the boys a week off which we thought was important after the schedule we had and we obviously went to Australia and it was a great week but it took a toll on them in terms of the travel.

'So to give them a week away to freshen up was good and it was really important we got them back focused in here.'

"We’ve been able to train here with good facilities and work hard for seven days and we have a normal lead into the Aberdeen game.”

It’s been a week which has also allowed Yuki Kobayashi to get his first taste of life as a Celtic player after joining from J-League side Vissel Kobe.

With Josip Juranovic still performing at the World Cup, he won’t join the other World Cup Celts back at training this week, as the boys return to further bolster the squad alongside the newest addition, Alistair Johnston.

The manager added: “It’s been a bit early for him (Kobayashi) and it’s just an introduction and we’ve got a good three weeks before he’s even available to play.

“It’s just been a case of him getting to know the lads and how we train and as always the boys have been really good and the next few weeks it’s about getting up to speed.

'It will definitely be a positive experience for all our boys, they’ve all done well at the World Cup.'

“They’ve all played meaningful minutes and they’ve all been really strong contributors to their countries and when you do that at a World Cup, absolutely you come back with a little bit more belief in yourself.

“We will get Aaron Mooy, Cameron Carter-Vickers and Daizen Maeda back early this week and Alistair Johnston joins us so it will be good to have them back into the group.”

With the team returning to Glasgow, the focus on Monday will switch to Aberdeen away from home on Saturday as the league recommences from its World Cup shutdown.

Speaking about the match, the manager said: “We’ve just got to keep improving our football and progressing.

“It’s a tough first game at home away to Aberdeen but we’ve had a good week here and have another week at Lennoxtown to get the boys ready and we will be ready for it.”

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