Crvena Zvezda's Milan Rodic (L) vies with FC Copenhagen's Jens Stage during the UEFA Champions League third qualifying round first leg football match between Crvena Zvezda and FC Copenhagen in Belgrade, Serbia on Aug. 6, 2019. (Xinhua/Predrag Milosavljevic)

Crvena Zvezda's Aleksa Vukanovic (L) vies with FC Copenhagen's Guillermo Varela during the UEFA Champions League third qualifying round first leg football match between Crvena Zvezda and FC Copenhagen in Belgrade, Serbia on Aug. 6, 2019. (Xinhua/Predrag Milosavljevic)

FC Copenhagen's head coach Stale Solbakken gestures during the UEFA Champions League third qualifying round first leg football match between Crvena Zvezda and FC Copenhagen in Belgrade, Serbia on Aug. 6, 2019. (Xinhua/Predrag Milosavljevic)

Crvena Zvezda's Milan Pavkov celebrates during the UEFA Champions League third qualifying round first leg football match between Crvena Zvezda and FC Copenhagen in Belgrade, Serbia on Aug. 6, 2019. (Xinhua/Predrag Milosavljevic)

Crvena Zvezda's Dusan Jovancic (L) vies with FC Copenhagen's Jonas Wind during the UEFA Champions League third qualifying round first leg football match between Crvena Zvezda and FC Copenhagen in Belgrade, Serbia on Aug. 6, 2019. (Xinhua/Predrag Milosavljevic)

Crvena Zvezda's Aleksa Vukanovic (L) vies with FC Copenhagen's Bryan Oviedo during the UEFA Champions League third qualifying round first leg football match between Crvena Zvezda and FC Copenhagen in Belgrade, Serbia on Aug. 6, 2019. (Xinhua/Predrag Milosavljevic)

Crvena Zvezda's Milan Pavkov (L) vies with FC Copenhagen's Sotirios Papagiannopoulos during the UEFA Champions League third qualifying round first leg football match between Crvena Zvezda and FC Copenhagen in Belgrade, Serbia on Aug. 6, 2019. (Xinhua/Predrag Milosavljevic)