Jensen and Castello already knocked out Ariana Sanchez and Paula Josemaria earlier in the BTG Pactual Chile Padel Open, and now move on to the last round after winning two tie-breaks at the Universidad Católica.
With the win, Jensen has become the youngest female finalist in World Padel Tour history at 17 years, 7 months and 26 days old.
Should the Argentinian win on Sunday, she would break Bea Gonzalez's record and become the youngest winner in WPT ever.
Watch the match highlights in the video below!