St Kilda has named its extended squad ahead of Sunday's match against Port Adelaide at RSEA Park.

The Saints will make at least three changes to the side that defeated the Tigers in Spud's Game in Round 6.

Molly McDonald will miss the remainder of the season after suffering a fractured leg, while J'Noemi Anderson will also miss with an ankle injury. Kyla Forbes (omitted) will also exit the side.

Zoe Besanko has been named on the field to return to the lineup after last appearing in Round 4, while Nicola Xenos, Ella Friend and Darcy Guttridge have all been named to the extended bench in their respective bids to return from injury.

The final team will be announced at 5:00pm AEST on Friday.

The game will be played at 1:05pm AEST on Sunday, and will be broadcast live on Fox Footy and Kayo.