Zac Williams has had no luck since joining CarltonCredit:Getty
The injury toll is growing at the Blues with young forward Sam Philp also suffering a stress fracture to the second metatarsal in his foot which required surgery.
Carlton’s head of football Brad Lloyd confirmed that Williams suffered the injury at training on Friday,with the club on a camp in Queensland this week.
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“These incidents are so unfortunate and we are all feeling for Zac,he could not have done any more this pre-season to get himself ready for the year,” Lloyd said.
“He has had more than his fair share of bad luck with injury,Zac,but in that time he has built up a lot of resilience,which he will no doubt tap into,as we all support him on his road to recovery from here.”
Williams was primed for a big season - his third at Carlton - after a frustrating first two years at the club since arriving from the Giants on a six-year deal to play as a midfielder.
He has played just 23 games in those two seasons missing all but the final home and away game after round nine last year when he suffered a high-grade calf injury.