Stuart Lancaster says England will be concentrating on only their Six Nations game with Scotland at the weekend and not what is happening between Ireland and Wales.
The Welsh and the Irish teams kick off two-and-a-half hours before England take on Scotland at Twickenham on 14 March.
Should Ireland slip up in a tricky-looking fixture, it will blow their hopes of a Grand Slam and give England the chance to win the Six Nations on points difference if they win their remaining two games.
Lancaster's side started their campaign with wins over Italy and Wales but lost against the Irish in Dublin a fortnight ago.
"It is something you can't control as a player" Lancaster said at a news conference on 11 March when asked if England could be forgiven for keeping half an eye on what was going on in Cardiff.
"Their game will be playing out around 4.30pm as we are about to go and warm up in front of 82,000 people and play against Scotland. You don't want their heads full of a game that is going on in an environment you can't control. And that is the same for me if I am being honest. I can't control it. I am concentrating on my own team."
England host the World Cup in 2015 and, despite indifferent recent form, expectations are high for Lancaster's men as they will enjoy home advantage. And the coach admitted the pressure will be big, citing the backlash experienced by the England cricket team after their early exit from the World Cup.
Lancaster said: "When you look at other national teams, particularly, obviously your own country, and you see the pressure and expectation on them, and obviously the disappointment that people feel, and not just the players and the coaches, but the country feels when we don't achieve success... I recognise the challenge that is coming our way in September."