Lukaku scored his second goal of the season after arriving from Manchester United as Inter defeated Cagliari 2-1 on Sunday but the victory was soured by racist chants.
Monkey chants were directed at Lukaku as Inter’s club-record signing stepped up to convert a 72nd-minute penalty at the Sardegna Arena.
In a post on Instagram following the match, Lukaku highlighted that many players had been racially abused in the last month.
“Football is a game to be enjoyed by everyone we shouldn’t accept any form of discrimination that will put our game in shame,” he said.
“I hope the football federations all over the world react strongly on all cases of discrimination!!!”
Despite the caveman attitude once again of the Cagliari fans, this was a good Inter performance and Lukaku highlighted some of the positives of his bright start to the Antonio Conte era.
“I’m very happy about these first two league victories and about tonight’s success,” Lukaku told Inter TV .
“It was a tough match, we had to fight but that’s what we’ll have to do in every game, I’m happy for the team and for our fans.
“To score wearing this shirt is a great feeling, I want to help the team even more, through assists too. The goal is to continue like this.”
Lukaku scored the winner after team-mate Lautaro Martinez’s first-half opener was cancelled out by Joao Pedro away from home.
On his partnership with Martinez, Lukaku believes they’ll keep working better together over time.
“It’s improving week after week and I’m happy about his goal, which was important for us,” he said.
“Now there will be a break for national team commitments, it will be important that we all come back in good condition and then work best in preparation for the matches at San Siro against Udinese and Slavia Prague [in the Champions League].”
Following the international break Inter will return to Serie A play on September 15 against Udinese. After that, the club will be looking ahead to that Champions League opener against Slavia Prague two days later in Milan.