Port Adelaide midfielder Tom Rockliff just can't seem to catch a break in 2021, with the club announcing he has undergone partial medial meniscectomy surgery.

After injuring his left knee during Port Magpies' win against last years premiers Woodville-West Torrens last weekend, scans later revealed medial ligament damage to that knee. It was later confirmed that he would be out for at least the next six weeks.

Rockliff suffered yet another blow in the days following the game, with his right knee becoming inflamed and painful and further scans revealing a meniscus injury that would require surgery.

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It is believed that the injury to Rockliff's right knee may have happened in the same incident as the left knee injury, but the good news is this wouldn't add any more time spent on the sidelines.

It's a bitter blow for Rockliff, who has played just the one AFL game so far in 2021 and been trying to crack back into the Power midfield after playing 16 games for the club in 2020.

Rockliff has played 50 games for the Power since crossing from Brisbane during the 2017 trade period as a restricted free agent.