The Under 20s centre suffered a Grad 2 MCL injury to his knee in last week's season opener against the Junior Rabbitohs at ANZ Stadium.
Milne has responded well to treatment so far but it is expected that he will miss 6-8 weeks.
The NYC backrower suffered a hand injury in last week's season opener against the Junior Rabbitohs at ANZ Stadium.
Meehan was not considered for selection in Round 2 and is expected to miss 1-2 weeks of Holden Cup action.
The front rower suffered a knee injury in the side's opening match at the Auckland Nines.
He was ruled out of the remainder of the tournament by Roosters Medical Staff following the injury and underwent surgery after returning to Sydney.
It is expected that Isaac's recovery will take 4-6 weeks.
After tearing his ACL in his return from injury, in the Round 15 Holden Cup fixture against the Bulldogs at ANZ Stadium, Tautau underwent a second knee reconstruction in as many seasons.
On a limited working load since suffering the injury, Tautau has responded well to treatment and has returned to running and light training.
It is still expected that he will make a return to play mid-season.
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