GOLD Coast fullback Matthew Warnock willmiss at least eight weeks after fracturing a bone in his left arm duringSaturday night's 38-point loss to Port Adelaide.

Warnock has undergone surgery and had aplate inserted to repair a fracture to his left radius.

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Suns general manager of football operationsMarcus Ashcroft said Warnock was taken straight to hospital after the match.

"He underwent surgery yesterday andwe anticipate the injury will keep Matthew sidelined for at least eight weeks,"Ashcroft said.

The injury - which happened when he fell awkwardly - will force Suns coach GuyMcKenna to reshuffle his backline for Saturday's match against GWS, with hisdefensive stocks looking a little thin.

Vice-captain Nathan Bock is stillsidelined with a broken leg sustained almost 12 months ago.

Power forward Sam Day was used indefence in the second half against Port Adelaide and could be an option against the Giants, while Steven May has also been used there during the club'sfirst two seasons.

In some good news for the Suns, youngkey position player Tom Lynch is likely to be recalled after kicking 6.8 in hissecond reserves match following a stress fracture to his foot.

 Michael Whiting covers Gold Coast newsfor Follow him on Twitter: @AFL_mikewhiting