Tonon was selected at Pick No.20 at the 2021 AFLW Draft. She enjoyed an excellent 2021 season, winning a SANFLW premiership with Glenelg and earning selection in the SANFLW Team of the Year as a defender. She also represented South Australia at the Under-19 AFLW Championships and received a call-up to the AFLW Academy mid-year. The Mount Gambier teenager reads the play well across half-back and can break the lines on a wing. Tonon is a former member of the Crows Academy.