Cavallo posted a heartfelt Instagram message, reading: "Starting this year with my fiance. Mr and Mr coming soon. Thank you Adelaide United for helping set up this surprise.
"Your endless support has meant so much to me. You have provided a safe space in football, one that I never in my dreams thought could ever be possible and encouraged me to live every day of my life authentically. It felt right to share this special moment on the pitch, where it all started."