The Lions well established system of playing two recognised ruckmen is now set for an overhaul with Archie Smith joining Stefan Martin on the sidelines.
Martin will be missing for up to eight weeks with a stress fracture in his back leaving Oscar McInerney as the sole ruckman.
Smith suffered a syndesmosis injury in Sunday’s four-point win over Melbourne and will be in a moon boot for the next two weeks.
High performance manager Damien Austin said Smith’s ability to push through the injury was important for the side but scans this week revealed he now faced a stint on the sidelines.
“Archie did tremendously well to play out the game, he rolled his ankle, and he’s in a boot for a couple of weeks,’’ he said.
He will then require a conditioning and strengthening block before he is available for selection.
Daniel Rich is the big out for the Lions with a hamstring injury while Ryan Lester has a similar issue although he is a chance to miss just one game.
“He (Rich) didn’t finish the game, it’s a minor hamstring strain that would take him out usually for one game but with the proximity of games and the short turn arounds it might be one or two so we’ll see how he goes,’’ Austin said.
“Froggy finished the game, he also did a minor hamstring, it’s in a different location and is a little bit less than Richie but we’ll still have to go with the same process.
“So where he would generally miss a week, we will see how we go when we get to our game on Tuesday.’’