England prop Mako Vunipola believes his side are in a vulnerable position ahead of their game against Ireland in Dublin on Saturday as they look to secure back-to-back Grand Slam titles.
Eddie Jones’ side recorded their 18th-straight win last weekend after defeating Scotland – equalling the record set by the All Blacks for consecutive victories – and retained theSix Nations title and Calcutta Cup in doing so.
However, England must beat Ireland on Saturday to secure back-to back Grand Slam titles and Vunipola is under no illusions of the challenge his team will face this weekend.
"It would be a great achievement to win back-to-back Grand Slams, we want to be the best team in the world and this is the first step in getting there," he told the RFU's official website.
"All we can do is go out there and put a performance in that we can be proud of.
"If you look back at the history of the Six Nations there has never been a team that’s won two Grand Slams in a row. We want to achieve something historic.
"However, we know the task in front of us, Ireland away is going to be extremely difficult."
"To go to someone else’s stadium and get a win is tough, not many teams do it, but that’s the challenge ahead of us. With us trying to achieve something so great it leaves us in a dangerous position."
England will also break the world record of consecutive wins if they win in Ireland however, the Saracens prop insists the squad are focused entirely on winning Saturday’s match.
“All we can do is go out there and put a performance in that we can be proud of, we can only play what’s in front of us," added Vunipola.
"It hasn’t been hard to keep our eyes firmly on the job this week, if anything it’s pushed us to be more focused."