The AFL is set to ask Hawthorn for a please explain after covering a camera in its change rooms on Friday night.
After ruckman Jon Ceglar went down with a knee injury, he was taken into the rooms, at which point a club staff member was captured by Channel Seven covering a broadcast camera with a towel to obscure vision of the 25-year-old receiving treatment.
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The League will seek an explanation from the club this week.
Hawthorn confirmed on Monday that Ceglar has suffered an ACL injury and will require a full knee reconstruction.