ADELAIDE veteran Scott Thompson will play on for a 17th season and make a transition into coaching after signing a one-year contract extension. 

The Crows have also signed young midfielder Harrison Wigg for a further year after a consistent second season with the Crows in the SANFL. 

Thompson, who has played 307 games and has coaching ambitions, will take on more unofficial coaching duties in what will likely be his final season.

The 32-year-old played 22 games this year and ranked No.1 at the club in clearances (5.8 a game), second in tackles (7.2) and third in disposals (23.9).

His manager, Michael Doughty, this week said Thompson would remain at the club to drive standards and would "also move on to the next stage … coaching".

Wigg, 19, is yet to debut for the Crows but impressed in the SANFL and appears well placed to take the next step in his career in 2017 after being named emergency for the senior team twice.

He finished third in Adelaide's SANFL best and fairest, averaging 23 possessions, five marks and three clearances. 

List manager Justin Reid said the Crows were well placed heading into the NAB AFL Trade Period.

"We are pleased with how our list is developing and a number of players in both the AFL and SANFL line-ups made good progress in 2016," Reid said on the club's website.

"However, there is always room for improvement and as we have often stated we will aim to bolster our talent through the draft while targeting specific needs in the trade window."