Huddersfield head into the final round of the season needing a victory after being thrashed 48-6 by league leaders Saints.
Luke Thompson and Morgan Knowles celebrated their Great Britain call-ups with two tries each as Saints ran riot against the understrength Giants.
London's victory means the Giants must defeat Catalans next week to secure Saints too good for relegation-threatened Giants
Huddersfield head into the final round of the season needing a victory after being thrashed 48-6 by league leaders Saints.
Luke Thompson and Morgan Knowles celebrated their Great Britain call-ups with two tries each as Saints ran riot against the understrength Giants.
London's victory means the Giants must defeat Catalans next week to secure 
