Thank you for your enquiry. All event content for the upcoming Ashes Series in Australia is managed by Cricket Australia, for example any music, entertainment, advertising, announcements and images shown throughout the stadium.
You may consider contacting Cricket Australia with your request, contact details can be found on their website - Contact Us | cricket.com.au
Please be advised that since opening the stadium in 2018, we have received many requests of this nature, to date there have been no individual personal messages facilitated during any international cricket matches.