The summer holidays are over for most of the Celtic players as manager Ange Postecoglou rounds up the troops for day one of pre-season training.
It was an outstanding first term in charge for the Australian who won the Premiership title and claimed League Cup glory after being initially wrote off amid the Eddie Howe appointment saga. Now it's his job to steel his men for a title defence alongside Champions League group stage football which kicks off this autumn.
New signings have started to arrive, with defender Cameron Carter Vickers and goalkeeper Benjamin Siegrist appearing so far. But there's anticipation for more, as fans await an announcement on Jota's loan deal from Benfica being made permanent. Then there's Alexandro Bernabei, who is set to join from Argentinian side Lanus. There's a new coach out on the grass at Lennoxtown too after Harry Kewell's recent appointment as a senior lieutenant.
The Australian football legend is well know to countryman Postecoglou and the pair have joined forces in Glasgow's east end.
Here's some of the best photos as fitness work gets underway.
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A fresh face
Former Dundee United goalkeeper Siegrist has signed a four-year deal at Parkhead and trained with his new teammates for the first time today.
He will compete with number one Joe Hart for regular minutes while Scott Bain operates as third choice.
Returning loanees
There's a host of faces returning to Parkhead this summer looking to make an impression on their boss.
Liam Shaw endured a frustrating spell at fellow Premiership side Motherwell but is back at Lennoxtown to show his worth, alongside former Sheffield Wednesday teammate Osaze Urhoghide, who spent time at Belgian club Oostende.
Goalkeeper Ross Doohan was also involved after time at Tranmere Rovers last season.
Open to ideas
Former Leeds United and Liverpool playmaker Kewell will have formally met his new colleagues out on the grass today.
His management career at Crawley Town, Notts County and Barnet has proven frustrating but a higher calibre of player awaits him at the champions.
Postecoglou has identified some desirable traits he clearly believes can bolster his green and white project.
Seizing a chance
Mikey Johnston's time working with his current boss has proven frustrating but there are hopes that this season can be the year where he finally makes himself a regular senior figure.
Others such as Yosuke Ideguchi and James McCarthy also had their minutes limited last season and have returned with adding to those in mind.
Youth injection
Some of the club's Lowland League 'B' team members have also been given the chance to sample senior life.
Bosun Lawal is one player enjoying some experience as is Ben Summers, who spent time with the first team last term. Johnny Kenny arrived from Sligo Rovers in January and the teenager is also involved.
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