Durmaz - whose tackle in the dying seconds of Saturday night's match resulted in a free-kick and Germany scoring the winning goal - was subsequently subjected to racist slurs and death threats on social media.
Prior to Sunday's training session, Durmaz, backed by Sweden coach Janne Andersson and the entire Sweden squad, made an emotional speech to reporters.
"To be called a suicide bomber and have death threats made against me, my family, and my children is entirely unacceptable," Durmaz said.
"I am Swedish, and I wear our shirt and our flag with pride," he added.
He also thanked those who had sent messages of support.
Following Durmaz's speech, the full Sweden team shouted "f##k racism" in unison and applauded Durmaz.
The 2-1 loss to Germany leaves Sweden needing a win against Mexico on Wednesday to have any chance of advancing to the last 16.