Napa is a key target for the Bulldogs as he is the prime candidate to replace the Test prop but he is contracted to the Roosters for another year.
However, the 26-year-old is in no rush to make his decision as is believed to be seeing if other clubs are interested in him.
The Bulldogs and the Knights are working to finalize the Klemmer move by early December but Canterbury don’t want to give him away without finding a replacement.
The Knights are waiting for Klemmer and St George to make a decision on whether or not they will release utility Kurt Mann.
The Knights have been the most active during the off-season with Warriors prop James Gavet and South Sydney back Hymel Hunt joining the team. They have also picked up Melbourne front rower Tim Glasby, Cronulla centre Jesse Ramien and winger Edrick Lee, Warriors halfback Mason Lino and Bulldogs hooker Zac Woolford.
The Dragons are still actively in the market for players next season as they look for Macdonald and Nightingale replacements.
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