Arsenal striker Olivier Giroud was confident he would always prove himself in England.

Giroud needed seven games to break his Arsenal duck but says he was always confident he would be able to adapt to the Premier League.

"As a striker you can't doubt yourself - in a career you will have periods of scarcity," he said. "You must be positive constantly and I'm like that. Here, it's a requirement at a very high level.

"When you have an opportunity you must take it. When it's not easy, you have to look ahead and demand more from yourself. That's just my motto."