As Danielle Collins walks out to Rod Laver Arena on Saturday night (local time), you may hear a few boos from the Australian Open crowd.

Danielle Collins got into a back-and-forth with a booing crowd at the Australian Open after eliminating a local player, blowing kisses to the spectators and repeating the phrase, “How about that?!”

Tennis purists felt unsettled as Danielle Collins went right at a rowdy Australian crowd after taking out a hometown favourite in incredible scenes. But the exchange is actually healthy for the sport.