Sometimes, the standard "Quiet, please" request just doesn't get the job done.
Chair umpire Marija Cicak scores a winner with her verbal reminder during Carla Suarez Navarro's 0-6, 6-1, 7-5 victory over Venus Williams.
More: Suarez Navarro Outlasts Venus in Miami
When crowd noise gets a bit intrusive after a challenge, listen to Cicak remind the crowd why we're here.
"The call stands. We're trying to play tennis here, thank you," Cicak says.
Video credit: Sluggahjells2
Photo credit: @BNPParibasOpen