Hearts' Ian Cathro plays down McDiarmid Park 'spat' with Bjorn Johnsen
Hearts head coach Ian Cathro says reports of a half-time argument with striker Bjorn Johnsen are "incorrect".
Choosing not to disclose what exactly had unfolded, Cathro said: "There is no real story. There was a lot of people not happy, and me most unhappy."
The American-born striker, 25, will be in the squad to play Celtic on Sunday.
Playing down the incident at Friday's media conference, Cathro said: "Bjorn has trained well today and is available for Sunday. There is no story around that.
"You hope that a lot of things are private. I don't read everything but my understanding is that what made it out wasn't actually correct.
"There's no real story. It was incorrect to the point of making it a story. I'd need to make up another lie to pretend it was a story again.
"I don't feel that is something we need to turn in to a bigger thing."
Asked if the argument with Johnsen, who has made 36 appearances in his first season at Tynecastle, suggested tension in the squad, Cathro replied: "No, it signals that for 20-25 minutes of that first half our approach, our attitude, our aggression was completely unacceptable and it swung the game to a level we should never drop to.
"It tells you we were not happy with that and what you saw was a much improved second-half performance, where we controlled the game."
Johnsen, who has dual US and Norwegian citizenship, was signed by Robbie Neilson last summer on a three-year contract.