Barbados (West Indies), May 6 : New Zealand wicket-keeper-batsman Brendon McCullum believes his brother Nathan, an off-spinner and hard-hitting lower-order batsman, will continue with his standout performance in the Group of Eight clashes of the World Twenty20 Cup.

"He''s (Nathan) a vital member of the team at the moment in this form of the game and in this country. Certainly the role he has to play is going to play a big part in our ability to progress through the tournament," the New Zealand Herald quoted Brendon, as saying.

"I''m pleased for him, I know how hard he works and I know how much he loves playing for New Zealand. To see him get the performances he has in the last two games ... is no easy feat," he added.

All-rounder Scott Styris has also emerged as a key figure, more with his medium-paced cutters than the bat, much to his own surprise.

Styris admitted rolling the arm over had become more of an afterthought in the latter part of his career.

"I''d like to think I know what I''m doing with the ball, it''s pretty basic and simple," he told Radio Sport.

Styris is, however, unsure how much influence his bowling would have during the Super Eight stage.

"From what we can understand, Barbados is very similar (to Guyana) so hopefully that will suit us," he said. (ANI)