This is a photo collection curated by AP photo editors.

An easy tennis ball test can gauge grip strength. Getty Images There are a few ways to gauge grip strength — such as a pricey handgrip dynamometer and the hanging bar method. Joshua Davidson ...

In the last two years, tennis ... 10 tossed balls at a time — but quickly grew. Now, Wittock works with the Federation of Wallonia in Brussels, who have offered her their entire stock ...

As the oldest tennis tournament in the world ... Even novices like me can appreciate the sound and smell of a fresh can of balls. A photo you can hear and smell 😅#Wimbledon pic.twitter.com ...

A tennis ball seems so ... has looked into manufacturing balls itself but instead decided to centralize the ball-purchasing process.Credit...Tim Goode/Getty Images “We hit thousands of balls ...

Tennis balls are made up of a hollow rubber core and a wool or nylon shell known as the nap. In tournaments they must be white or yellow in colour. The rubber core is usually filled with pressurised ...

China’s Zheng Qinwen wipes her face as she plays Russia’s Anastasia Pavliuchenkova during their first round match of the ...