Mercedes team principal Ross Brawn believes Michael Schumacher not to blame for problems . Seven - time world champion retired in third race of his F1 career in China . Brawn expects the year - old to keep showing improvement in every Grand Prix . While Rosberg claimed third place in Malaysia , Schumacher was forced to retire with a wheel nut problem . German has been outperformed by young teammate Nico Rosberg so far this year .
Mercedes team principal Ross Brawn believes Michael Schumacher not to blame for problems . Seven - time world champion retired in third race of his F1 career in China . Brawn expects the year - old to keep showing improvement in every Grand Prix . German has been outperformed by young teammate Nico Rosberg so far this year .