West Coast draftee Willie Rioli could be sidelined for as long as 12 weeks after suffering a hamstring strain at training during the week.

The talented forward is expected to be forced to undergo surgery to heal the injury.

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“Our medical group has gathered all of the information and will meet on Monday to determine what course of action we’ll take,” Vozzo said.

“It’s a significant injury, but it’s not a year out or anything like that. He will go through an extensive rehabilitiation period.”

“It’s a pity because he’s been really good.”

Rioli was selected with pick No.52 in the 2016 National Draft and is the cousin of Hawk Cyril Rioli and Tiger Daniel Rioli.