German newspaper Bild claims that Michael Schumacher has been told to improve . The former Formula One champion is currently in a coma after suffering severe head injuries at the end of last year while skiing with his son Ben. `` It 's not easy for anybody to compete against such a guy , and Michael does that quite well -- not always in qualifying Seven-time world champion languishing 10th overall in his comeback season . German manufacturer Porsche hints it may return to F1 grid for first time since 1960s .
German newspaper Bild claims that Michael Schumacher has been told to improve . The former Formula One champion is currently in a coma after suffering severe head injuries at the end of last year while skiing with his son Ben. Seven-time world champion languishing 10th overall in his comeback season . German manufacturer Porsche hints it may return to F1 grid for first time since 1960s .