Mercedes star Lewis Hamilton crashes out of first day of race Wednesday . Problem traced to the hydraulic brake line connecting to the right - rear caliper . Marussia appoints Brazil 's Ricardo Razia as its second driver for new season . He replaces Timo Bernhard and will partner Ferrari 's Max Chilton .
Mercedes star Lewis Hamilton crashes out of opening day of testing Wednesday . Problem traced to the hydraulic brake line connecting to the right-rear caliper . Marussia appoints Brazil 's Luis Razia as its second drive for new season . Razia replaces Timo Glock and will partner Britain 's Max Chilton .