Phil Moss in market for centre-half
Griffiths is expected to be sidelined for six weeks after tearing his hamstring in an internal match last weekend.
Three weeks out from the start of the A-League season, Moss is now looking to add depth behind first-choice pair Eddy Bosnar and Zac Anderson.
Socceroo Trent Sainsbury departed Gosford in January, while Dutchman Marcel Seip left the club in the off-season, leaving them short on defensive cover.
“I’m on the look out for a centre half at the moment,” Moss told FourFourTwo.
“Aside from that, I’m very happy with the squad. We’ve got good stability, we’ve got good experience and some great youngsters coming through, so the balance is very healthy.
The injury is a major blow for 24-year-old A-League nomad Griffiths, who has struggled with hamstring problems in recent times.
Given Griffiths’ injury woes, Moss may look for a more permanent solution as cover in defence.
“It’s a blow for him, but we need some reinforcement at the back to push Zac Anderson and Eddy Bosnar each day in training,” Moss said.
“I always believe you should have two players for every position to ensure competition for places is fierce and drives us to new levels. That’s what I’m looking to do.”
Meanwhile, Moss said striker Matt Simon was unlikely to be ready for the club’s Round One fixture against rivals Newcastle Jets.
Simon missed a significant chunk of pre-season for family reasons following the birth of his first child.
“He came back a bit later to pre-season but he’s back in training now and looking stronger by the day,” Moss said.
“He may not be ready for the first game of the A-League but certainly won’t be too far off.”
The Mariners are due to play Newcastle Jets in a pre-season friendly in Mudgee on Saturday.