Reports in Sweden suggested he snubbed his national side as a result of best friend Guidetti being left out by Andersson.
"There has been little speculation as to why he made his decision," Andersson said.
"Already yesterday I said that I have great respect and great understanding of the decision.
"I can strongly deny that it was because another player was taken out.
"Had it been so, I would not have had respect or understanding of the decision."