"Committing to Sydney Thunder for the next three seasons was an easy decision because I believe in the vision of this club, and I want to be part of its future success," Athapaththu said.

"There's so much to love about my Sydney Thunder family. My team-mates are not just colleagues; they are friends who push each other to be better every day, [which] is important to me. Western Sydney is the heart and soul of Sydney Thunder and representing such a diverse and vibrant community is a privilege to have. It's been an incredible journey so far, and I'm so excited for what's ahead."

Unlike in previous seasons where overseas players in the WBBL were contracted on a one-year basis, Athapaththu has signed under the league's new multi-year contract provision. It allows each club to sign one overseas player for up to three years outside of the draft, which will take place on September 1

Athapaththu has had stints in the WBBL previously with Melbourne Renegades and Perth Scorchers. Last season, after not being selected in the draft, she was added to the Thunder squad as cover for their three overseas players. Thunder open their 2024-25 campaign against Hobart Hurricanes on October 28.

Sydney Thunder updated squad

Chamari Athapaththu, Samantha Bates, Hannah Darlington, Saskia Horley, Anika Learoyd, Phoebe Litchfield, Claire Moore, Taneale Peschel, Georgia Voll, Tahlia Wilson