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Knowles arrived in South Yorkshire from Featherstone Rovers at the start of last season and only missed a handful of matches, as he became a regular for Mark Aston's side. 

He arrived as a back-rower but was played in the front-row and he certainly impressed. 

Undoubtedly one of the biggest metre makers in the squad, Knowles is a tough cookie to say the very least.

A fine player in a ferocious pack. 

Player Information
Date of Birth: 31/07/1993
Height: 187cm
Weight: 96kg
Number: 11