Huddersfield Giants' O'Donnell faces six week absence

O'Donnell made his NRL debut for Balmain in 1999

Huddersfield Giants forward Luke O'Donnell could be out for up to six weeks after picking up a serious hamstring injury.

Australian O'Donnell will also miss the mid-season international between England and the Exiles.

O'Donnell was injured warming up for the match against St Helens.

However the Giants could have Keith Mason available after the England international prop resumed full training following a knee problem