Former Manchester United forward Lukaku scored the winning goal for Inter Milan from the penalty spot shortly after he suffered racist attack.
Inter Milan triumphed over Cagliari 2-1.
The 26-year-old Belgian international angrily looked towards the stands before confidently converting his second goal in as many games, which came after Lautaro Martinez’s 28th-minute opener for the Antonio Conte’s side and Joao Pedro’s leveller for the hosts four minutes after the break.
The win puts Conte’s above Champions Juventus who also have six points in two games, but inter lead on difference.
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