Manchester United striker Cristiano Ronaldo has rejected criticism of the timing of his interview with Piers Morgan.

Ronaldo believes his TV interview in which the Manchester United forward said he had been betrayed by the club and was being forced out had not been a distraction in the Portugal changing room at the World Cup.

"In my life, the best timing is always my timing," Ronaldo told a news conference earlier today.

"I don't have to think about what other people think. I speak when I want. The players know me really well for many years and know the type of person I am.

"It's an ambitious group that is hungry and focused. So I'm sure it (the interview) won't shake the changing room's concentration and focus."

After missing Thursday's friendly against Nigeria in Lisbon due to a stomach problem, Ronaldo has been training as usual with team mates since arriving in Qatar on Friday and he said he feels in shape.

"I'm feeling great, I'm recovered and I'm training well and ready to start the World Cup in the best way possible," Ronaldo said.