Holah is out to make an impression on the European scene

"It's similar, there are different nations, it's cut-throat in the groups, you have to be 100% on your game every week," said the 36-cap All Black, 31.

"I hear it's hard to win away. The key is nailing the game up front so you have the set piece to work off.

"I'll be looking to fit into the way the Ospreys like to play and adding a bit of my character into it."

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606: DEBATE Holah brings a new dimension that may yet put the Ospreys at the top of this group Scrum V's Rick O'Shea

Holah made his last Test appearance for New Zealand in the 34-23 win over Ireland in June 2006, All Blacks captain Richie McCaw then keeping him out of the number seven shirt.

He arrived in Wales from Waikato last week, and impressed as a second-half substitute in the 51-16 EDF Energy Cup win over London Irish.

Holah will make his first start for his new side in their Heineken Cup opener against Bourgoin on Saturday evening at the Liberty Stadium.

"It was a tough first week, I'd just come over and I was on the pitch," Holah told BBC Sport Wales.