Hamilton v Rosberg is tame compared with Vettel v Webber – Red Bull’s Horner

• ‘In sport we need more that’s taking it to the extreme,’ says Christian Horner
• ‘I would be amazed to see Hamilton and Vettel sitting in the same team’Christian Horner wants to see more aggressive rivalry between team-mates in Formula One and says Lewis Hamilton’s jousting with Nico Rosberg at Mercedes is extremely mild when placed beside the enmity that existed between his former drivers Sebastian Vettel and Mark Webber a few years ago. Related: