The 23-year old went down during his side’s win over the Roosters on Friday, and scans have since revealed damage to his deltoid ligament.
Knights head of physical performance Balin Cupples said further scans would determine a more accurate timeline on when he is expected to return.
“Still conforming a little bit more detail around it but it’s looking like a 6-8-week injury,” Cupples said.
“He’s done a fair job on his deltoid ligament with his ankle. We’re getting a bit more detail and follow-up scans today and some other opinions and then we will work out a pathway, return to play.
“It’s tough for Danny. He’s been playing really well. We’ll make sure we get him back ASAP.”