Duke, who joined the Wanderers in the middle of their 2018/19 campaign, came off in the 40th minute of a 5-0 win over Queensland NPL club Gold Coast Knights on the Gold Coast on Thursday night.

A Wanderers spokesperson said Duke and the team flew back to Sydney on Friday for medical scans with fears he may have injured his ACL, putting him out of action for the season.

But the results this morning revealed the knee injury was minor by comparison and he will soon be back in action.

Duke's form last season was impressive enough to earn him a recall to the Socceroos side. He started against South Korea in June, almost six years after his last international appearance.

The Wanderers still have one more import spot left to fill.

Their injury list also includes goalkeepers Vedran Janjetovic and Danijel Nizic who are both recovering from injuries suffered near the end of last season.

The injury rules Duke out of the early stages of the FFA Cup, starting with the Wanderers' round of 32 FFA Cup match away to Perth Glory on August 7.

Barring any unforeseen setbacks, he should be on schedule to return before the start of the new A-League season in October.