Brian O'Driscoll has welcomed the opportunity to mark his milestone 50th cap as Ireland captain by adding the only outstanding major Test scalp to his collection.

A century-long rivalry against New Zealand, spanning 21 matches, has proved almost fruitless for Ireland, who have a solitary draw in 1973 to show for their efforts.

Recent meetings between the sides have seen them edge closer to securing that elusive first victory, succumbing by no more than 11 points in the last three Tests.

A prized triumph against the All Blacks would enable O'Driscoll to celebrate his landmark achievement in historic fashion, but the 2005 Lions skipper in New Zealand knows only too well the size of the task.

"Reaching 50 caps as captain is a huge honour. The first was an honour, as was being selected to captain your country the first time," he said.

"I never dreamt I'd reach 50 caps as captain. It's special and you want to mark the big occasions by playing the biggest teams.

"It doesn't get much bigger than the All Blacks at Croke Park and it's a hugely exciting prospect.

"Our record against the All Blacks speaks for itself. They're the only international team I've never beaten, whether that's for Ireland or the Lions.

"It's an enormous challenge. You want to prove yourself against the best sides.

"There's nothing like the feeling in a dressing room after you've taken a big scalp."