Paddy McCourt still cannot let go of the fact that Celtic lost last year's SPL title at Inverness.
Neil Lennon's side were in pole position for first place ahead of arch-rivals Rangers before their surprise midweek 3-2 defeat.
Celtic needed to win their final five league matches to wrestle the title from the Light Blues and McCourt is gutted they failed.
The new campaign gets under way this weekend and McCourt insists the Bhoys are determined to rectify last season's mistake.
"If we won our five games we would have won the league," explained McCourt.
"If you look back (earlier in the season), I think there were two or three home draws on the spin.
"People say we lost it then but I still look back at the Inverness game.
"We didn't turn up that night and we got punished and we are still paying for it.
"It is still pretty fresh, it is only a couple of months ago and it's not something you just get over quickly.
"Once you feel that hurt of coming so close, it's not something you want to go through again.
"To come so close last year, and to play so well in so many games and then to falter is disappointing.
"We only have ourselves to blame in that respect so we will be hoping to go and put it right this year. Certainly I will be using that to go on.
"Once the season starts again, hopefully we hit the ground running and we can only try to rectify it by winning it this year."