McCaw mulls 'wide open' Six Nations, says England must be on guard

By Ossian Shine LONDON (Reuters) - Pumped with confidence after an unbeaten 2016, England could be set for a rude awakening when the Six Nations start this weekend, with the rugby extravaganza more open than it has been for years, All Black great Richie McCaw told Reuters on Tuesday. England begin their campaign against France at Twickenham on Saturday, and will also need to contend with a powerful Ireland side in March if they are to sweep up the trophy. The ever-mercurial French are sure to pr