NORTH Melbourne midfielder Mia King is available to play in Saturday night's Grand Final against Brisbane.

The tough inside mid has spent the past six weeks on the sidelines with a posterior cruciate ligament injury, but has returned to full training this week leading up to the decider.

King's availability means that Kangaroos coach Darren Crocker will have a big selection call to make.

Crocker will need to determine whether he brings in the 24-year-old who hasn't played since round nine, or continues with the team that brought him success in a tight preliminary final against Melbourne.

King was exceptional in last year's Grand Final against the same opposition, finishing the match with 19 disposals and six clearances.

"She [King] has ticked off all her rehab requirements and has exited the rehab group," North Melbourne senior AFLW physiotherapist Billy Williams said.

The Lions will go into Saturday's Grand Final with a clean bill of health and a full squad available for selection.