Collingwood key defender Nathan Brown will be out of AFL action for up to a month after another knee injury.
The Magpies announced on Monday that scans showed Brown strained the medial ligament in his left knee during the second quarter of Saturday night’s win over Brisbane.
They said he would miss between two to four weeks.
Brown has endured a shocking run with knee injuries, returning on Anzac Day after more than a year out of the senior side.
The 2010 premiership defender had played the last three games for the Magpies.