'Unacceptable' Warriors were denied late penalty: NRL

The NRL says the Warriors should have been awarded a penalty late in the 13-12 loss to Canterbury. (Steven Markham/AAP PHOTOS)

The NRL admits it made an error denying the Warriors a potentially game-winning penalty late in the second half of their 13-12 loss to Canterbury.

Head of football operations Graham Annesley says it is "unacceptable" the bunker did not register that Jaeman Salmon had made late contact on Te Maire Martin after the Warriors halfback passed the ball during an attacking raid.