The Sharks have put the shutters down on any discussion related to Kyle Flanagan seeking an early release to the Sydney Roosters.

The club have told Flanagan's management that they won't even entertain the idea of letting him go this season.

Cronulla are aware how valuable Flanagan is as they charge towards the finals.

With question marks over the fitness of Shaun Johnson - who ironically former coach Shane Flanagan was crucial to luring to the club - we could see the local junior ultimately surpass the Kiwi, who was defensively poor last week against Canberra.