At last, you can play tennis with a robot | Mashable
316 Tennis Robot Photos and Premium High Res Pictures - Getty Images
Interesting Engineering on Twitter: "This smart robot collects tennis balls, saving time for players and coaches! 🎾 Find more at https://t.co/apvIh9nNK2 🎥@tennibot #engineering https://t.co/C2cVX2ea0k" / Twitter