PARIS — French superstar Kylian Mbappe says the knee injury that kept him sidelined for almost two months is “behind him” and there had never been a concern he would miss this year’s World Cup.

The 27-year-old Real Madrid striker admitted he had not been at his best mentally during the 54-day absence — the longest of his career.

“There was a lot of frustration, anger and anxiety,” the French captain said.

Mbappe, who along with the French squad flies to the United States today for friendlies against Brazil on Thursday and then Colombia Sunday, came on as a substitute for a few minutes in last week’s Champions League last-16 match at Manchester City.

He also played over 25 minutes for Real — for whom he is top scorer this campaign with 38 goals in 34 appearances — in the 3-2 derby win over Atletico on Sunday.

“It is behind me,” he said of the injury.

“I put myself under a regime where I wanted to return gently but with a hunger to play.

“I hope I am going to be able to play during the international break and make a difference.”

The France captain — a World Cup winner in 2018 and runner-up in 2022 — said he had been annoyed by the rumour mill suggesting his injury was more serious than it actually was.

He had avoided undergoing surgery after scans he had in Paris at the beginning of March revealed he would not require an intervention.

“Lots of people gave their own diagnosis, I heard many false things,” said Mbappe, who was appearing at an event of an insurance company he invested in in Paris yesterday.