A soccer player when growing up, Greiser made the switch to AFL in 2018 and was elevated to the St Kilda FC AFLW team in 2020. She is an All Australian, League Leading Goal Kicker and Best and Fairest Winner (2020). In March 2023, she requested a trade to Richmond AFLW, and if currently preparing for her first season at Punt Road. Off field, Greiser is a Secondary Teacher but is only casual due to AFLW training commitments.
