ODriscoll and DArcy will form the Irish midfield for Sundays clash with Italy in a partnership that is being seen in some quarters as the most like centre duo for the British Lions Test line-up.

As one of the most dangerous backs in the world, ODriscolls place against the All Blacks this summer is assured, but DArcy has much to prove after setting last seasons Six Nations alight.

The 24-year-old took centre stage last season when he replaced his injured Leinster team-mate for the opener against France, doing such an outstanding job that he retained the number 13 jersey ahead of his captain.

ODriscoll was forced to play at inside centre when he returned to fitness and found himself overshadowed by DArcy, who continued to earn rave reviews before being crowned player of the tournament.

Now the pressure is on for DArcy - who has been restricted by injury to a solitary international appearance since the 2004 Six Nations - to prove his blistering form was not just a one-off.

It is a challenge that ODriscoll believes Irelands current inside centre has the talent to meet - provided he is not overburdened by the weight of expectation.

Its going to be a new challenge for DArcy this time around. The players who have completed a full Six Nations season and have done well are going to be watched, he said.

But I dont buy into this second season syndrome - I know DArcy too well and he wants to succeed so much. Dont expect the miracles of last year but watch out for the breaks, the basics being done properly and a good solid defence.

Hes an exciting runner going forward - there wont be too much change in his game in that respect. Even if defenders do try and close his space down hes such a talented footballer hell still find a way through.

Theres not going to be a huge difference to his game. Theres certainly a lot of expectation on him, but much of that will come from himself.

In the likes of DArcy and ODriscoll, Ireland have the most exciting backline in the Six Nations and they will need to be firing if the nations 57-year wait for a second Grand Slam title is to end.

Irelands quest has been made easier by the knowledge that England and France must travel to Lansdowne Road, but a tournament clean sweep is still a big ask of Eddie OSullivans Triple Crown holders.

ODriscoll added: It is extremely hard to win the tournament itself, but to beat all the other sides in the process is some feet. We cant get carried away with whats been said in the media.