Trent McKenzie has been withdrawn from Port Adelaide's clash with Melbourne. Image: AFL Photos.

PORT ADELAIDE has been forced into a late change for Thursday night’s game against Melbourne with defender Trent McKenzie ruled out with injury.

McKenzie has been forced out with knee soreness with midfielder Trent Dumont to take his place in the selected side.

Dumont will begin the match as Port Adelaide's medical substitute, with Miles Bergman joining the starting 22 at Adelaide Oval.

It will be Dumont’s club debut after 113 games with North Melbourne.