Chicago Bulls point guard Derrick Rose has revealed that his confidence is "through the roof" as he continues to participate in Team USA's training camp this week.

The 25-year-old has played just 10 games in the past two seasons due to two serious knee injuries, but he is still confident that he will return to being the player he was before they struck.

"I'm not worried about that. My confidence is very high, and that's the only thing you might see this year, that my confidence level is through the roof," he said, ESPN reports.

Rose has been sidelined since November last year but he impressed during the first practice on Monday and is keen to prove all the doubters wrong in the coming months.