Who is popular today?

This year’s U.S. Open served up a curious match. On Monday, Croatian-Australian tennis star Ajla Tomljanović was spotted in the box of Italy’s Matteo Berrettini, who defeated Russia’s Andrey Rublev in the fourth round, according to Tennis Tonic. An Instagram post also surfaced of Tomljanović, 26, who previously dated Australian bad boy Nick Kyrgios, at...