Australian cricket great Mark Waugh has issued a warning to young gun Sam Konstas.

The 19-year-old was invovled in a heated exchange on day one at the SCG, this time with Indian seamer and captain Jasprit Bumrah.

The incident led straight to Usman Khawaja’s dismissal on the final ball and according to Waugh, there was no need for Konstas to get involved.

“I don’t know whether it is naive enthusiasm or that’s just the way he has always played his game through the juniors and likes to have high energy and get involved in the game, but really there was no need for Sam to get involved there,” he said on Fox Cricket.

“I think he should have bit his tongue and it’s got nothing to do with him actually and it might have broken the concentration of Khawaja.

“He might learn from that Konstas. If he keeps behaving like that he is going to have a target on his back for his whole career. I just think he is firing the opposition up. He’s fired up Jasprit. You don’t want to fire him up.

“I think Sam will reflect on that and think he should have minded his own business. I have just got to let the bat do the talking.”

Konstas will resume on Saturday morning against an angry Indian side, spearheaded by Bumrah, alongside No.3 batter Marnus Labuschagne.