Chelsea new boy Oscar is confident that it will be just a matter of time before he claims a place in the starting line-up.
The 20-year-old joined the Champions League holders for £25million this summer from Internacional.
Oscar gave the Chelsea faithful a glimpse of his quality when he came on for the final half an hour against Wigan on the opening weekend of the season.
It was a display that boosted the Brazil international's morale and filled him with the confidence to secure a starting role at Stamford Bridge.
"I'm confident I will adapt soon which will help me to play well and earn my place in the team," he told Radio Estadao ESPN.
Roberto Di Matteo has a host of quality players at his disposal but, having proved himself in his homeland, the talented playmaker has set himself the challenge of getting into the Chelsea first team in the next four weeks.
He added: "It was like that at Internacional and it will be the same at Chelsea. It won't take long, in a month I will have adapted and I will be in the first team.
"I'm in good form, I'm doing well which can be seen in training. It was a good performance against Wigan even though I only came on in the second half and played the last 30 minutes.
"Of course there is strong competition for places, but I have confidence in my football ability."