Holland winger Arjen Robben believes he is not yet at his best despite earning the man-of-the-match award against Slovakia.

Robben scored Holland's opener in their 2-1 triumph on Monday to seal a place in the quarter-finals of the World Cup against Brazil. It was all the more rewarding considering the Bayern Munich winger earned his first start of the tournament against the Slovaks after recovering from a calf injury.

"It was a great feeling to start this game," Robben said. "I think it was also good to feel important for this team. I am not yet at my top level but I was pretty confident."