Newcastle Knights prop Korbin Sims has extended his contract with the club for another two years it was announced on Friday. 

Sims joined Newcastle in 2011 and has played 33 games since making his debut in 2013. 

"Korbin has shown us the key attributes we are looking for both on and off the field and we know his future is bright here at the Knights," Knights CEO Matt Gidley said.

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