Arsenal superstar to come good on Sunday...
The Arsenal centre forward has yet to hit top form in South Africa, scoring only one goal in the Oranje charge to Sunday's show piece. With midfielder Wesley Sneijder leading the way with five strikes, the 26-year old has struggled as a lone front man.
But speaking to the press in the build up to the weekend clash, van Marwijk had no doubt van Persie was growing into the tournament.
"Robin has really improved during the last few matches and I still have a lot of confidence in him," Van Marwijk, who had a highly-publicised disagreement with Van Persie during their time together at PSV Eindhoven, said.
"He will show his best football in the coming match."
Van Persie has also won support from team-mate Kuyt, with the Liverpool man praising his selfless displays.
"Robin is a quality player," Kuyt stated.
"We saw some things against Uruguay [in the semi-final] but in this World Cup it is very difficult for strikers to score goals, get some space and create chances.
"But one thing Robin does is work really hard. He is a team player. It is just difficult to create chances. People expected him to score five or six goals. He hasn't done that but the way he is playing he is still very important for us."