Juventus' Italian teenage forward Moise Kean suffered racist abuse from the stands during Tuesday's Serie A match at Cagliari.

The 19-year-old held his arms aloft after scoring Juve's second in the 2-0 win, seemingly in response to chants, and was subjected to further abuse.

Afterward, he wrote on Instagram: "The best way to respond to racism."

Boss Massimiliano Allegri and defender Leonardo Bonucci said Kean should take some of the blame for his celebration.

"He shouldn't have celebrated in that manner," said Allegri. "He is a young man and he has to learn, but certain things from the crowd also shouldn't be heard."

Italy international Bonucci - who scored the opening goal - told Sky Sport Italia: "You celebrate goals with your team-mates. He could have done it differently.

"I think the blame is 50-50. Moise should not have done that and the Curva [fans] should not have reacted in that way."

However, in his post-match interview, Allegri called the fans directing abuse at Kean "idiots who do stupid things and ruin it for everyone else" and said the authorities "don't really want to" tackle the problem.

"You need great intelligence to deal with these situations and should not go to provoke people. That, of course, does not mean the idiots in the crowd and the way they reacted should be justified," he said.

"I don't think to talk about it all the time helps. I don't think halting play helps because not everyone in the stadium did that.

"We need to use the cameras, find those who are doing it and punish them. It's very simple, identify them and not one-year ban or two, just give them a lifetime ban.

"We've got the technology, it can be done if the authorities want to. The problem is, they don't really want to."

The UEFA president wants referees to stop matches if there is racism.