In May 2021 Pettersen scored a goal for Piteå in open play, clearing the ball from the midfield. At the end of the season she was given the Goal of the Year award in the 2021 Damallsvenskan. At the time, the Twitter video of the goal had been watched 100,000 times. She did however leave Piteå after the season, to commence her third spell in Vålerenga.
