Krzyzewski said that Kevin Durant and Russell Westbrook, teammates of Krstic on the Thunder, were “surprised because he is such a quiet guy, smiling all the time.”
Thunder general manager Sam Presti said he spoke with Krstic on Friday.
“He recognizes that this is an unfortunate situation and he is regretful for his actions,” Presti said in a statement. “He has apologized to the Greek national team and has reached out personally to specific members of the Greek team. He is looking forward to continuing his preparation for the world championships and representing his country.”
U.S. forward Lamar Odom said his team would avoid being carried away by their emotions when they face Greece in an exhibition game next week in Athens, and later during the tournament.
“We understand that if something like that were to happen with us it would be worldwide news,” Odom said, “so that's something we won't let happen.”
Greece's deputy culture and tourism minister Giorgos Nikitiadis, whose portfolio includes sports, condemned the “regrettable incidents.”
Nikitiadis said Greek authorities would not tolerate sports violence, “especially from those who, although they wear their national symbols, are not aware that they represent their country — not themselves.”
Serbia and Greece are scheduled to play in the basketball world championships beginning Aug. 28 in Turkey, although they are in separate groups for the preliminary round.
Serbia plays in Group A with Angola, Argentina, Australia, Germany and Jordan, while Greece, the runner-up at the last worlds in 2006, is in Group C with China, the Ivory Coast, Puerto Rico, Russia and Turkey.
Group B features Slovenia, Brazil, Croatia, Iran, Tunisia and the United States, and Group D contains Canada, France, Lebanon, Lithuania, New Zealand and defending champion Spain. Watch video of the brawl