Chelsea manager Roberto Di Matteo has called on UEFA to charge Juventus defender Leonardo Bonucci after his stamp forced Oscar off in the 2-2 Champions League draw on Wednesday.
Oscar marked his first start for Chelsea with a stunning display, scoring both goals to put his side into a 2-0 lead, only for the opposition to eventually pull the scores level.
However, his performance was curtailed when he went down clutching his ankle following a challenge with Leonardo Bonucci - who appeared to stand on the Brazilian as he landed.
Di Matteo endorsed calls for UEFA to examine video footage of the incident, criticising the performance of referee Pedro Proenca.
"The referee did do nothing about many challenges," he said. "The game has finished now for us. If UEFA has a look then good. But we have to move on from it."
Although unhappy with the refereeing performance, as well as seeing his side let a two-goal lead slip, the Italian was full of praise for Oscar's full debut, but is unsure as to how serious his injury may be.
"We will have to assess him tomorrow morning but he got a knock on his ankle," Di Matteo said. "It was a great debut for Oscar. I thought it was the right game to start him and he did a perfect job tactically.
"He scored two goals and the second one was a wonderful goal. He is a big talent. He has got a bit of everything. We shouldn't forget that he is still a young man - he is only 21 - but he is already quite established in his national team already. I think we are very lucky to have him in our team."
Oscar, who had a shot deflected into the back of the net before following that up minutes later with a sublime effort, was delighted to get off the mark for his new club.
"I am very happy with the two goals on my debut but I would have been much happier if the team had managed to win," he said. "For the second goal, as soon as I had made the first touch and shot, I knew the ball was going in. I was playing very well so I could score this beautiful goal and I'm very happy with it.
"I was trying to get space to shoot so my first touch was to get the ball away from Pirlo and shoot. It was a good goal."