The 20-year-old playmaker joined the Blues from Internacional earlier this summer for a fee reportedly worth £25 million.

Oscar made his debut for Chelsea in Sunday’s 2-0 win over Wigan Athletic at the DW Stadium, replacing fellow new signing Eden Hazard in the 64th minute.

The Brazil international is now backing himself to earn a starting berth in Roberto Di Matteo’s side in the coming weeks despite the challenges of adapting to life in a different country and a new style of football.

”I’m confident I will adapt soon which will help me to play well and earn my place in the team,” Oscar told Radio Estadao ESPN.

”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.”

Oscar could make his first appearance at Stamford Bridge tonight as he has been included in Chelsea’s squad for their Premier League clash against Reading.