The GIANTS have secured mature aged midfielder Matt de Boer with pick 58 of the 2016 NAB AFL Draft.

The 26-year-old played 138 games for the Fremantle Dockers after joining the club in the 2008 Rookie Draft.

At 186cm and 86kg, de Boer is a hard bodied midfielder renowned for his tackling pressure and ability to win contested possession.

De Boer played four games for Fremantle in 2016 and starred for their WAFL affiliate Peel Thunder leading them to their maiden premiership and finishing runner up in the Sandover Medal.

De Boer brings big game experience to the GIANTS, having played in 10 finals for Fremantle, including their 2013 Grand Final loss.