Are You Good Enough to Be a Tennis Line Judge? - WSJ.com
In a video call, Chinese tennis star Peng Shuai told Olympics officials she's safe : NPR
IOC says Chinese tennis star Peng Shuai told officials she is safe during video call - UPI.com
WTA calls on China to investigate Peng sexual assault allegations | Reuters
Iga Swiatek calls for US Open to ditch horrible women's tennis balls
Quiz: Can you make the call on clay?
Tennis: World No.2 baffled over 'hindrance' call dividing fans
Moment of truth: tech firms in tennis line-call battle
Tennis Line Call App
Fearless Tennis: Keep your cool when the bad line call happens – Tennis Coalition SF
Roland Garros and electronic line-calling still don't see eye to eye
French Open Sticks With Umpire's Eye Over Hawk-Eye on Clay - The New York Times
Gets the call right every time": How tennis went electronic
In/Out: The Portable Ready-to-Use Line Call Device
The Top 5 Blown Calls That Technology Could've Stopped
Will This Be the Last French Open With Only Human Eyes Minding the Lines? - The New York Times
Un-Official Guide to Who Makes What Call in Tennis – Doubletake
:no_upscale()/cdn.vox-cdn.com/uploads/chorus_asset/file/18940353/usa_today_12825064.jpg "Why do people call them 'tennis shoes'? - SBNation.com")
Why do people call them 'tennis shoes'? - SBNation.com
How to Deal with Bad Calls
In/Out 3.0 tennis line call device is more accurate than ever
Men's tour backs WTA call for probe into Peng sexual assault allegations | Reuters
The U.S Open replaces human line judges with optical technology : NPR
