AC Milan's Francesco Camarda, rear center, hits the crossbar during a Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.

AC Milan's Tammy Abraham greets fans after the Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.

AC Milan's Tammy Abraham, right, scores his sides second goal past Red Star's goalkeeper Ivan Gutesa during the Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.

Red Star's Uros Spajic, right, challenges AC Milan's Yunus Musah during the Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.

AC Milan's Youssouf Fofana, right, challenges Red Star's Andrija Maksimovic during the Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.

AC Milan's Alvaro Morata, right, challenges Red Star's Rade Krunic during the Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.

AC Milan's Davide Calabria, right, challenges Red Star's Timi Max Elsnik during the Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.

Red Star's Nemanja Radonjic, left, celebrates with teammates after scoring his sides first goal during the Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.

AC Milan's Rafael Leao celebrates after scoring his sides first goal during the Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.

AC Milan's Malick Thiaw, right, challenges Red Star's Cherif Ndiaye during the Champions League opening phase soccer match between AC Milan and Red Star Belgrade, Crvena Zvezda, at the San Siro stadium in Milan, Italy.