Trial form means nothing: Hornby

St George Illawarra halfback Ben Hornby believes ordinary trial form will count for nothing when his side meets Wests Tigers in the NRL season opener at Telstra Stadium tonight.

Both clubs have struggled in the pre-season, with the defending premiers losing the World Club Challenge to Bradford in England and then copping a 42-18 flogging from Manly in their last trial game.

The Dragons were overrun in their traditional Charity Shield encounter against South Sydney before succumbing to the Sydney Roosters in their last hit-out.