GWS stars Toby Greene and Brett Deledio will almost certainly return on Saturday, but coach Leon Cameron isn't sure whether it will be in the AFL or NEAFL.
Greene hasn't played since round five because of a foot injury, while Deledio has been sidelined since round six because of hamstring and calf setbacks.
Provided the pair, among the first picked in Cameron's side if fit, train on Wednesday then pull up well they will be cleared to make comebacks.
The Giants, currently sitting 10th on the ladder as they prepare to host reigning premiers Richmond on Saturday night, will then have to make some critical selection calls.
"We think they are ready to return in some form, whether it's AFL or NEAFL," Cameron told reporters on Tuesday.
"They're definitely ready to put their hands up if they get through training."
There are strong arguments for easing both Greene and Deledio back via the seconds, such is their importance to the club's hopes of clambering up the ladder and becoming premiership contenders during the second half of the season.
There are strong arguments for picking Greene while giving Deledio another week. The club is crying out for a clutch goal-kicker in the absence of Jeremy Cameron and Jon Patton, while the latter's recurring calf trouble warrants a conservative approach.
There are strong arguments for recalling Deledio and not Greene, because the former enjoyed a more productive pre-season.
And of course there are strong arguments for picking both players, because they've been running for a month and the Giants' slim top-four aspirations will take an almighty blow if they lose to the ladder-leading Tigers.
"There's going to be fors and against for everything ... all that will be taken into consideration," Cameron said.
"It gives us some good things to discuss.
"There's going to be huge ramifications for us if we don't get the job done, but we played some pretty good footy in Perth."
Greene has endured a stop-start year. He missed much of the pre-season with a broken toe, played round one then tweaked his hamstring.
"Whether he comes back this week or next, or is straight into AFL or via the NEAFL, it's going to take him a couple of weeks to get rolling," Cameron said.
"We've got to be patient."
The Tigers have enhanced their status as premiership contenders in recent weeks, defeating Geelong and Sydney then smashing Adelaide.
"It's a huge game," Cameron said.
"Clearly they are the best team in the competition.
"Everybody talks about their pressure, which is outstanding, but they do a lot of other things really, really well."