Lycett, who had just recovered from a posterior cruciate ligament injury, was playing for WAFL affiliate, East Perth, when he injured his left shoulder at East Fremantle Oval on Saturday.
“There was a dislocation, which has caused some bone damage,” Eagles general manager of football Craig Vozzo said.
“Our doctors are recommending that we go down the path of latarjet surgery, so that’ll take place early next week.”
While the Eagles have arguably the best ruck depth in the competition, the injury to Lycett is a big blow.
Nathan Vardy, who had a day out against Melbourne in West Coast’s final JLT match, now looks certain to assume the number one ruckman responsibilities for the club with Drew Petrie and Jonathan Giles to battle it out for the back up duties.
Giles will be given the chance to prove himself in round one of the WAFL this weekend.