“If you saw me smiling more on court the past 6 months, it was genuine,” she writes. “My cancer diagnosis was the catalyst for more sustained change.”

Dabrowski, ranked No. 3 in women's doubles, said in an Instagram post that she received the diagnosis in April and underwent treatment amid trips to Wimbledon and the Paris Olympics.

Canada's Dabrowski and Canada-born New Zealander Routliffe capped 2024 with victory at the WTA Finals, stamping their authority on the top of the game.