Polozen's clean sheet came close in the 96th minute but Michaela van den Bulk's finish hit the inside of the post.
It was a dream debut for Polozen after the post trembled clear.
There were several circumstances that meant that Polozen got the chance in a competitive context for the first time.
She had previously played in two training matches for Rosengård.
But when starting goalkeeper Tegan Micah and substitute Angel Mukasa were injured, Polozen got his chance.
- My knees were shaking when the match started, but after the first touch everything went away and I kept my focus on the match and keeping a clean sheet, Polozen told SVT Sport.
She got an emotional shiver just from being told that there would be games.
Got the message about a train journey
- I was sitting on the train between Trelleborg and Malmö and then I got a call where they said I was going to play and I can honestly say that I was shaking.
I forgot who I was and how to play football.
It was pretty awesome, says Polozen, who is just bursting with emotion.
- I am on top of the world.
Adrenaline just spurts, but you also have to be humble.
I have worked so hard for this.
My chance has come and I must take it.
The nervousness subsided quite quickly.
- I have been very nervous but have been helped like hell by my teammates and everyone has supported me a lot.
I got the support I needed and it felt great.
They have encouraged me.
What was it like to make your debut in a game with so much at stake?
- I didn't think so much about it, but about being here and now.
I know what I can do and what I go out to do and know how good our team is so I wasn't worried.