Charlie Nicholas has urged Leigh Griffiths to calm down for the good of himself and Celtic.
The Hoops star could face retrospective SFA action after being accused of stamping on Hamilton's Sam Woods.
Griffiths was booked following a shoving match with Alex Gogic shortly after as Celtic ran out 4-1 winners on Sunday.
Neil Lennon defended Griffiths over the alleged stamp but issued him a reminder over his discipline post-match.
And former Parkhead star Nicholas is concerned the 29-year-old Scotland frontman will land himself in bother - to the detriment of club and country.
He wrote in The Express: "Leigh Griffiths is getting back to his best at Celtic but he has to lose the anger from his game.
"The striker was lucky not to be sent off at Hamilton on Sunday. He had a kick at Sam Woods and then put his studs on the defender's chest, below, It wasn't a forceful stamp but Griffiths knew what he was doing.
"Moments later he was involved in a shoving match with Alex Gogic and that is what he got booked for.
"I really enjoy watching Griffiths when he is on song and I love to see him score goals for Celtic and Scotland.
"Even fans of rival clubs would love to see him back as the national team's No 9. But why does he need to be so angry right now?
"He should get his game head on and score goals - and then everything else will fall into place.
"Leigh will turn 30 in August. When you get to that age you start to question yourself on the pitch a lot more. It becomes more about the team and Leigh has always been an individual.
"Leigh needs to concentrate on enjoying his football.
"The anger should come as you put the ball in the net - but after that you ought to celebrate.
"You have to enjoy your football as long as you can because soon enough your playing days are behind you."