The centre underwent ankle surgery in June and with a projected six-week recovery time, the 31-year-old looks certain to miss Ireland's World Cup warm-up games - with the first against Scotland on August 6.
The 57-cap centre picked up the injury in Leinster's epic Heineken Cup final win over Northampton and D'Arcy originally hoped for the injury to heal itself naturally. This soon proved to be a forlorn hope and the Wexford-born centre went under the knife on June 20.
And Kidney has now conceded that D'Arcy faces a race against time to make the plane to New Zealand. "Unfortunately Gordon's ankle didn't solve itself so he needed an operation and it will take a good six weeks to be running fully, then you need a pre-season, which is another couple of weeks, so it's getting tight," Kidney said.
Ireland start their World Cup preparations against Scotland on Saturday before facing France (twice) and completing their schedule against England on August 27.
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
$29.99
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.
