sabine kehm
F1: Marchionne phone call convinced Vettel to join Ferrari
Ferrari chairman Sergio Marchionne and Michael Schumacher's manager Sabine Kehm convinced an uncertain Sebastian Vettel to join Ferrari for F1 2015
Lauda: Schumacher must 'be honest with himself'
Having pulled off a successful comeback of his own but elected to call it a day once his form tailed off, three-time F1 World Champion Niki Lauda suggests Michael Schumacher needs to ask himself some serious questions