Christopher Nkunku converted a late penalty as AC Milan battled to a 1-1 draw with city rivals Inter Milan in a pre-season Derby della Madonnina at the Optus Stadium in Perth, Australia, on Wednesday. Playing in front of 52,310 spectators, AC Milan enjoyed the brighter start, with teenager Alphadjo Cisse and Samuel Chukwueze providing attacking impetus. AC Milan looked set to suffer defeat until Nkunku was brought down by Carlos Augusto in the 83rd minute. The result means new AC Milan manager Ruben Amorim remains without a victory since taking charge. AC Milan will continue their pre-season preparations against Chelsea in Jakarta on Saturday.