Cox, owned by just short of 105,000 DT coaches, is rated a 50/50 chance to play by West Coast coach John Worsfold due to the groin complaint.
"[It's] certainly something that we’re monitoring, how he's feeling and how much we can push him up and test him out for this week," Worsfold told the media on Tuesday.
"We're still hopeful that he'll come up. We think he may, but we can't be sure on that."
Should Cox not pull up, young $146k ruck Nick Naitanui could fill his shoes at West Coast and provide emergency cover for many DT teams as well, as he's owned by almost 30,000 DT coaches.
And Worsfold inadvertedly acknowledged Naitanui would play again, saying, "He has done a fair bit of ruck work with Swans, so he could certainly cope with a fair workload."
Worsfold also admitted $219k ruckman Mark Seaby would be in the mix should Cox not play.
The Eagles also revealed $343k midfielder Andrew Embley will face a test on his injured ankle later in the week, while $238k defender Adam Hunter is still in doubt with a shoulder problem.
Also $245k forward Brent Staker will miss another three weeks after breaking a knuckle playing in the WAFL for East Fremantle on the weekend.