Portugal coach Fernando Santos says he received an apology from the referee who failed to award his team a penalty during their 1-1 draw against Serbia on Monday evening.
Santos was left furious when Polish referee Szymon Marciniak originally pointed to the spot after Andre Silva's 73rd-minute close-range header struck Antonio Rukavina's arm, only for the official to overturn his decision after conferring with his assistant.
The incident came as Portugal were scrapping to find a winner having gone 1-0 down to Dusan Tadic's 7th-minute penalty before Danilo Periera levelled three minutes from the break with a spectacular 25-yard strike.