MIKAEL Lustig knows what it is like to feel invincible – just not like this.

Celtic’s Swedish full back went a full 30-game Norwegian league campaign unbeaten during his time at Rosenborg but even that can’t hold a candle to what he has achieved at Parkhead this season, where he helped Brendan Rodgers’ side re-write the Scottish record books by emerging unvanquished with three separate pieces of silverware after a gruelling 47-game domestic season.

And what is perhaps even more surprising, when you consider the groin injuries which have plagued him throughout his career, is that the Swede – a virtual ever-present – is still standing at the end of it.

“It’s something that is probably never going to happen again in Scottish football – to win 34 out of 38 games and to win a treble is wonderful,” said Lustig. “While we will be favourites in every game again next year, anything can happen: a red card, an injury, it can affect you.

“It did happen in a couple of games this season and we were strong enough to cope. I also think we will get better, but to collect that many points again might take a couple of years.”

The Swede made 49 appearances this season, which is only a handful more than he managed in the previous campaign but night and day compared to a couple of frustrating seasons early on in his Celtic career when he was more frequently to be found on the Lennoxtown treatment table.

“The last two years have been great for me,” said Lustig. “I went back to basics and worked the way I did when I was at Rosenborg and never missed a game.

“I’ve had a different role at times playing in a back three and I think it suited me a little better. It just feels good to always be on the pitch.”

“There are a lot of games in Scotland,” he added. “And when you get one injury you want back as soon as possible and you maybe rush things. But the seasons I missed games were down to groin operations – which could happen to anyone.

“The other injury was caused by me landing awkwardly after a tackle and that could happen to anyone as well. It’s nice to be fit and play my role, play 90 minutes most weeks.”

This intense, forensic work to return the likes of Lustig, and other injury-affected members of the squad such as James Forrest, to the rudest of health began under Ronny Deila.

So did the necessity to drop body fat levels and get fitter than ever before which cost the likes of Kris Commons their place in the Celtic first team.

But what has really elevated the Parkhead side this season is the magic dust which Rodgers appears to have sprinkled on every single player to give them that extra 10 per cent of confidence. Lustig used to look up during his time under the Norwegian and see certain players dreading taking the ball.

Now, everywhere he looks people are showing the bravery to get on the ball or provide him with options.

“When you get confidence on the park things go so much better,” said Lustig. “Last season we were fit as well but late on in games no one wanted the ball.”

Aside from a swashbuckling solo goal at Ibrox, the Swede himself isn’t always able to make it on to the highlight reel. But he is another member of this squad who is being more productive than ever.

“I want the ball too – but it’s not easy to change the game from right-back,” he added. “I can’t take it and dribble the length of the park. But when you have confidence you see passes and have time on the ball.

“When you miss that then everything is quick and it looks like you are a poor player.”