The forward has scored 39 goals in all competitions for the Scottish Premiership side.
Former Hibernian boss Pat Fenlon has claimed that he knew from his time working alongside Leigh Griffiths at Easter Road that the striker had the potential to enjoy a season like the one he is currently enjoying with Celtic, the Daily Record reports.
The 25-year-old spent the majority of his two-season loan spell with the club working under the Irishman, and it was a sensational second campaign that saw him move onto Celtic's radar as he scored 23 goals in 36 league games.
But that form has been nothing like what he has achieved this season. He has scored 39 goals in all competitions, including 30 in the league to inspire the Hoops to the Scottish Premiership title for a fifth consecutive year. And Fenlon has insisted that he always felt that that kind of ruthlessness was in his locker.
"I always believed Leigh had a season like this in him, with 39 goals. I said it at the time that he'd score bundles of goals at Celtic because of the chances they create," he told the Record.
"He's had a fantastic season. He's in a good condition and his head is in a good place.
"He's a good finisher with both feet and a great header of the ball for a small boy. He has a fantastic attitude - he just wants to score goals."
While the likes of Kris Commons and Stefan Johansen have proved previously that they are capable of stepping up with goals, it is difficult to imagine that without Griffiths' contribution, the Bhoys would have secured the league title.
Though someone may have replaced the Scotland international in the side had his form been poor, it seems unlikely that the other options available to Ronny Deila would have been capable of performing to such a high standard.
Neither Carlton Cole or Colin Kazim-Richards have been able to fill Hoops fans with huge amounts of confidence that the side would be able to cope if Griffiths picked up an injury, which suggests that he has been instrumental to the team's success in the league.