My initial reaction was that it was Hamilton's fault but the replays clearly show Rosberg losing power and then coming off the racing line to force Hamilton off the track as he was overtaking. Hopefully a 10 place penalty at Monaco for the wannabe German who is actually a Finn. However I think Mercedes are favouring Rosberg big time this season so I expect a bit of corruption as Mercedes call in some favours and Rosberg gets away with a 'racing incident". Not that I am in any way biased.