Celtic’s depth is one of their major strengths under Ange Postecoglou. The team has been able to field good starting XIs without Jota, Carl Starfelt, and Callum McGregor.

Last season, the roster was small and Postecoglou had to play out-of-position players often owing to injuries.

Now, rotation is a huge element of the Celtics’ game strategy, and it’s clear why. Postecoglou’s style of play makes it tough for players to perform well three days a week.

McGregor can, when fit. Greg Taylor told Glasgow Live:

“Yes, we’ve got a squad for that reason. Every player naturally wants to play in every game but that’s not possible – unless you are Cal!

“We all want to play but equally we understand that there has to be rotation from time to time.

“When the manager puts the board up before the game, you are just keen and hoping that your name is on it.

“Whoever is playing in whatever position, you just back the team that the gaffer selects because we know if we all have that attitude and work hard for each other then we’ll all reap the rewards and get the success together.”

It shows how quickly Postecoglou built Celtic’s culture. Even non-playing athletes aren’t rumoured to cause trouble behind the scenes. In modern football, that’s unusual.

Christopher Jullien, who played just once last season as a substitute, praised Postecoglou after departing for France.

McGregor is an undroppable. The skipper has had marathon seasons for years, even playing the last one wearing a face mask. The Scottish midfielder recently got injured against RB Leipzig.