St George Illawarra Dragons centre has suffered a hamstring strain and will remain monitored ahead of the fixture against the Sydney Roosters at Allianz Stadium, Moore Park on Monday, April 25.
The Australa PM XIII representative sustained the Grade 1 hamstring strain during the 19-14 win over the Gold Coast Titans at Cbus Super Stadium, Robina on Saturday.
Aitken, who will undergo scans in the coming days, was the most serious injury sustained during the fixture in a game which also saw prop Russell Packer and second-rower Tyson Frizell at stages forced from the game.
“Unfotunately Euan has sustained a Grade 1 hamstring strain,” said Dragons Head of Medical and Performance Tony Ayoub.
“He felt like he could go back out there, he still had a lot of power and we could have used him if we really needed too, but decided it wasn’t worth the risk.
“We didn’t want to jeopardise the next couple of games and I think that he is likely to miss the ANZAC Day match and be right the following week but we will see how things go over the next week.
“Tyson had a nasty head knock that required stitches and Russell copped a knock to the back of his head but he came off for a concussion test and that settled down quickly which was good, they were both able to go back on the field.
“Gareth Widdop was hit in the face as he scored the first try that caused his nose to bleed which was difficult to stop, but other than that everyone is fine, we have come through the game reasonably well."