All Black centres Sonny Bill Williams and Ma'a Nonu have singled out Brian O'Driscoll as Ireland's danger man ahead of their three Test series which starts this week.

Williams has been in rich form in the Super Rugby season and has been pushing for inclusion in the All Blacks starting line up possibly alongside either Conrad Smith or Nonu.

Ireland's O'Driscoll only recently returned from shoulder surgery which ruled him our for four months but Sonny Bill still expects BOD to be as imposing as he has been in the past for anyone he plays for.

"O'Driscoll is always the danger man. Absolutely, " he told the Irish Independent.

"He's done well since he came back. "

O'Driscoll returned to playing rugby in time to help his domestic club Leinster win their third Heineken Cup title in four years last month.

"It's going to be a tough challenge but hopefully we can play a style of footie that is entertaining but a winning style as well. "

"I'm looking forward to it, getting that black jersey back on. But the Irish are playing some good rugby and both Irish teams (Leinster and Ulster) in the Heineken Cup Final.

Nonu who has had a difficult season since he moved to the Blues who have dropped to the bottom of the Super Rugby table also expects strong performances from O'Driscoll.

"O'Driscoll is going great, " he said.

"He always turns out. He's such a great player, that I admire. "

"I've been watching him for a long time and always seems to turn up at the right time, especially for Leinster. "

"The older he gets, the better he gets. Really. "