Rosberg speaks in the immediate aftermath .
Rosberg says he was ' surprised ' that Hamilton turned in when he did , while the defending champion maintains he gave plenty of room to the German , who Mercedes said suffered a brake - by - wire failure .
Speaking in the immediate aftermath , Rosberg says he was ' surprised ' that Hamilton turned in when he did , while the defending champion maintains he gave plenty of room to the German , who Mercedes said suffered a brake - by - wire failure .