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The Chilean star has taken over the top position from Gabriel Heinze...

Chile have been one of the surprises of the 2010 World Cup, with two victories in the group stage, and their strong performances have led to a spot in the top 20 of the Castrol Index for three of the South Americans' defenders.

Gary Medel is the new leader in the 2010 World Cup Castrol Index after two matchdays, while Waldo Ponce and Carlos Carmona have also won a spot in the top 10. Chile have yet to concede their first goal at this summer's tournament.

Argentinian defender Gabriel Heinze, who topped the rankings after matchday 1, has dropped to eighth spot. He's no longer Argentina's top performer, as Gonzalo Higuain has climbed to fourth spot following his hat-trick against South Korea.

Dutch international Gregory van der Wiel put in yet another solid display for Oranje in their 1-0 win against Japan and has held onto his fifth position.

Gianluca Zambrotta, John Pantsil and Joan Capdevila are the most surprising new names at the top of the list. None of the aforementioned three players have made the headlines for their performances so far, but their good displays haven't gone unnoticed by the Castrol Index.

The Castrol Index uses objective analysis and highly advanced technology to measure every pass, tackle and move on the field and assess whether it has a positive or negative impact on a team's ability to score or concede a goal.

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