Jack Ginnivan makes honest admission after igniting post-match stoush against Port Adelaide [Video]

Hawthorn young gun Jack Ginnivan has admitted he needs to “grow up” after sparking the ugly post-match war following the Hawks’ loss to Port Adelaide last week.

Ginnivan lit the fuse for a hostile clash against the Power with his infamous comment on former teammate Brodie Grundy’s Instagram post.

Port Adelaide felt disrespected after Ginnivan wrote “see you in 14 days” on Grundy’s photo.

After Port walked away with an epic three-point victory, tempers flared as veteran coach Ken Hinkley taunted Ginnivan before being involved in an ugly verbal stoush with Hawks captain James Sicily.

Hinkley was fined $20,000 for his role in the post-match exchange with Sicily, who 7NEWS.com.au revealed on Thursday said Port had been a “nowhere club for eight years”.

Ginnivan privately admitted to club leaders that he regretted the social media post and, speaking publicly for the first time since the Hawks’ finals exit, the 21-year-old conceded he needs to be a bit “smarter”.

“Upon reflection, it probably wasn’t the smartest idea, …