It's been the perfect start for Celtic as they look to defend their Scottish Premiership crown but they face a tough test against Hearts after Robbie Neilson's side finished the best of the rest last term.
Ange Postecoglou has led his side to nine points from nine so far this term and the early signs are positive for the Parkhead boss as he put his side through their paces before the clash with the Jambos. With strength in depth this term, every player is looking to catch the bosses eye with performances in training.
Robbie Neilson's men showed they can compete at a high level already this term with their battling midweek Europa League playoff showing against FC Zurich, and the Gorgie side will look to build momentum for the second leg with a good showing at Celtic Park on Sunday. However, that is easier said than done with Postecoglou's side building momentum after a thumping win over Kilmarnock.
How are this Scottish champions preparing for the visit of the capital club? Record Sport goes behind the scenes to look at the final session before the game.
Reo is ready
The Japan international has been a key part of the squad since his arrival last term, but hasn't made the Celtic squad since the opening day of the season against Aberdeen after a muscle problem. Postecoglou is now brining the midfielder back in for the clash with Hearts.
Hatate looked delighted to be back with his teammates as took on a training drill alongside Daizen Maeda. His return leaves Postecoglou with a big decision to make over who starts at Celtic Park on Sunday - Hatate or David Turnbull.
Lean on me
Another big call for Ange Postecoglou on Sunday will come at the heart of defence. Moritz Jenz has impressed in the last two games, while Carl Stafelt will be keen to partner Cameron Carter-Vickers at the back once again.
However, they aren't the only two making their case with Stephen Welsh also back in training. He made an instant impact on the opening day of the season with a goal and a clean sheet against Aberdeen.
Since then he has been out with illness. He was spotted taking on a drill alongside Jota. Maybe he was hoping some of the Portugese winger's early season magic rubs off on him ahead of a potential return?
Staying put?
Mikey Johnston has yet to feature in a match day squad this season, with speculation ramping up over a move away from Celtic. Ronny Deila had been keen to take the winger to Standard Liege but talk of a loan move appears to have gone quiet.
The imminent arrival of Sead Haksabanovic from Rubin Kazan will likely push the winger further down the pecking order in Glasgow's east end. However, he was working hard behind the scenes at Lennoxtown.
Could he make the squad to face Hearts? It could be his last chance to catch Postecoglou's eye before the Montengro international puts pen to paper.
Jota in the eye of the storm
It's been the hot topic this week on punditry desks around the country. Is Jota the best player in the Scottish Premiership?
James McFadden and Barry Ferguson have both been noising up Kris Boyd about his claim that the winger isn't the top dog. But at training you wouldn't know Jota was at the heart of the debate.
He appeared to be completely concentrated as he took on an agility drill with Stephen Welsh and Matt O'Riley watching on. His teammates will be hoping for more of the same from the star man on Sunday after his scintillating start to the season.
Football focus
Alexandro Bernabei is available for selection for Sunday’s clash with Hearts despite the full back’s arrest over an alleged drink-drive offence. The 21-year-old arrived in the summer in a £3.75 million deal from South American side Lanus, but is yet to make a competitive appearance for the club.
The Argentinian was arrested in the early hours of Monday morning, and Postecoglou states the club are dealing with the matter internally. Bernabei appeared keen to focus on football ahead of match day four in the Premiership.
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