Salah was substituted during Egypt's 1-1 draw with Iran in its final group match, casting doubt over his availability for the knockout tie in Dallas.

Photos posted on the Egyptian Football Association's Facebook page showed a smiling Salah back on the training pitch in Spokane, where Egypt has been preparing for the Australia match. The team accompanied the images with the caption: "The King is back".

Salah's return was a timely boost for Egypt, which progressed to the knockout stages for the first time after finishing second in its group with five points, behind Belgium on goal difference.

The 34 year-old has been instrumental in Egypt's campaign, scoring once and providing two assists.