Hawthorn have officially signed Karl Amon as a free agent from Port Adelaide.

Amon joins the Hawks in a return to his home state on a four-year deal after exercising his rights as an unrestricted free agent.

The move will see Amon end his eight-year spell with the Power, which saw the flashy wingman notch up 124 games for the South Australian side.

โ€œWe are thrilled to officially welcome Karl to Hawthorn,โ€ Hawks list boss Rob McKenzie said.ย 

โ€œIt's pleasing to hear Karl indicate his decision to commit to the club was based around the positive direction of the organisation and the exciting brand of football being developed.ย 

โ€œHe is an incredibly gifted athlete and can be damaging by foot.

โ€œWith more than 100 games under his belt, we believe his skillset and experience will complement our young and developing list.โ€

Port Adelaide have received Pick 27 as compensation for Amon.

The Power had initially hoped for a first-round selection and will now add the incoming pick to their current hand of 8, 53, 56 and 80.

The Power are in a position to bolster their squad despite the loss of Amon, with Richmond midfielder Jack Graham and West Coast forward Junior Rioli in the mix to land at Alberton.