The 24-year-old was on the mend 12 months ago from a foot injury before suffering a patella tendon rupture that ended his 2021 campaign before it started.
The string of setbacks came after Milera and the Crows agreed to a new five-year contract extension, with the club having shown great faith in the Central Districts product.
Adelaide are now gaining great excitement in the prospect of Milera's long-awaited return, with players having returned to pre-season training on Monday ahead of the new season.
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Speaking on the approach the Crows will take with Milera in his comeback, Adelaide football boss Adam Kelly told media that the club will remain cautious in nurturing the pacey defender back into the game.
“It’s been great to have him back within the main group… as you’d imagine with effectively two years away from the game he’s had some significant challenges,” Kelly said on Monday.
“Wayne’s a much-loved, respected member of our group and obviously highly talented.
“We’re just so pleased that he’s out there with the playing group at the moment and going well, it puts a smile on our faces to see him out there.
“We’ll start cautiously because he’s had such a long way away from football.
“But we cross our fingers every day that he gets through another session and gets one step closer to making his way back onto the field."
Should Milera surpass critical benchmarks in the coming weeks, the Crows defender could line up for his side against West Coast next month as part of Adelaide's practice match schedule.
The Crows are also fixtured to face Port Adelaide on Saturday, March 5 for the AAMI Community Series.