Rick Stone said his side had been schooled after going down 34-12 to Salford.
The Red Evils raced into a 24-0 lead, and although the Giants scored through Nathan Mason and Oliver Roberts, Stone’s side was still comfortably defeated.
After one round of the Qualifiers, the Giants occupy sixth in the table, a spot that would see them relegated if they end the seven-round season there.
“Salford ran and tackled harder than us and were better disciplined. It’s a good lesson in semi-final-style football.
“There’s no doubt we are mentally fragile at the moment and are not defending our line well.
“We will have to change a couple of things but it’s not going to be easy.
“We didn’t show too much willingness to build pressure and made basic errors.”
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