Cronulla are bracing for the prospect of being without inspirational captain Paul Gallen for Friday night's blockbuster NRL preliminary final showdown with the Melbourne Storm.
Gallen suffered a shoulder injury in the second half of the Sharks' heart- stopping 21-20 semi-final win over Penrith and is racing the clock to be fit for the grudge match with their 2016 grand final rivals at AAMI Park.
"Gal is just a wait and see. We will get a scan. Touch wood that he is okay but it is a bit unknown," Sharks coach Shane Flanagan said.
"When Gal doesn't come back on, I am real concerned. He usually can just go in and get it strapped up and battle on. For him not to come back in a big semi- final is a bit concerning."
At 37, Gallen delivered one of his best performances of the season before the Sharks needed a Chad Townsend field goal five minutes from fulltime to avoid a shattering loss after having led the Panthers 18-0 at Allianz Stadium.
The Sharks are also sweating on fellow forward enforcer Luke Lewis to recover from a calf injury, but the retiring veteran insists he'll be "sweet"
"I'll be fine mate, to be honest with you," Lewis told AAP.
"I've just got to get through the next couple of days, get all the swelling down.
"But it's just a cork in a crappy position. It is what it is, though. I'm not too stressed about it."
The Sharks are one of the few teams to have the wood over Melbourne, not only famously beating the Storm in the grand final two years ago to win the club's elusive maiden premiership, but also conquering Craig Bellamy's team twice already this season.
"I am obviously excited about it," Flanagan said of the latest match-up for a berth in the 2018 title decider against either the Sydney Roosters, South Sydney or St George Illawarra.
"We have had some great tussles with them obviously from the (2016) grand final. They have been fantastic games.
"We have been lucky enough to win some and unlucky on a couple of occasions or they have been too good for us.
"It is a real challenge going down there on the back of Melbourne having a week off. They will be fresh.
"They will have some players back from suspension (Will Chambers) and injury (Nelson Asofa-Solomona) so we will have to be on our game if we are going to play in the grand final."