Oscar will feature in the Capital One Cup quarter-final at Leeds but has been used sparingly by interim manager Benitez to date, starting just three of his seven games in charge.
The Brazilian playmaker expressed his disappointment after being selected on the bench against Corinthians, but Benitez insists there is no rift with the player.
"Oscar is fine. He's a very good professional. We don't have any issue with him," he said.
"I try to manage players, especially in his position because we have Eden Hazard and Juan Mata, who can do more or less the same job.
"It's difficult for them but it's good for me because I have different problems. There are no issues or problems.
"Oscar will have a lot of time on the pitch and I'm sure he'll be a great player for the club.
"Oscar's not happy because he's not playing and that's fantastic. There would be a problem if it was the opposite."
- Sports & Recreation