Chelsea boss Roberto di Matteo was pleased to give Oscar his debut in victory at Wigan Athletic.
The Brazilian may see more action tonight against Reading.
Di Matteo said: "We're slowly looking to integrate him, like we did with the other new signings.
"He's not been long with us, so we need to give him the right time to get him used to his new team members and the team, and our tactics, and slowly put him into the team."