Liuzzi and Filippi to miss Massa's karting event

Vitantonio Liuzzi and Luca Filippi will not be able to participate in Felipe Massa's karting event in Brazil this weekend. The duo have been forced to call off their participation as they have Formula One commitments. Former Minardi driver Tarso Marques will replace Liuzzi, while Argentinian Jose Maria Lopez, could be the substitute for Filippi.

Felipe Massa explained: "Liuzzi is still looking for a team for 2008 and Filippi has a seat-fitting scheduled for Honda that clashes with the date of our race."