Sheffield head coach Mark Aston insists Rhys Jacks needs to be 'more assertive' if he is to get first team action at the Eagles.
The Canadian international, a reported target of Toronto Wolfpack, hasn't played in over a month at Sheffield, last playing in the club's defeat to Oldham.
And speaking to The Star, Aston insists he needs to see morAston demands more from Jacks
Sheffield head coach Mark Aston insists Rhys Jacks needs to be 'more assertive' if he is to get first team action at the Eagles.
The Canadian international, a reported target of Toronto Wolfpack, hasn't played in over a month at Sheffield, last playing in the club's defeat to Oldham.
And speaking to The Star, Aston insists he needs to see mor
