The Fremantle Dockers are back in winning form after claiming a nine-point win over depleted Port Adelaide side at Optus Stadium on Sunday.

The Power lost Paddy Ryder in the second quarter with a groin injury and Robbie Gray was sidelined with concussion after a tackle from Ryan Nyhuis in the third quarter, but it didn't stop the Power from fighting on, but Brennan Cox broke a goal drought for the game and lead his Dockers to the 8.11 (59) to 7.8 (50) win.