The sport of tennis is no stranger to incorporating new technologies -- from the electronic line judges of the early '70s to today's Hawk-Eye system with its multi-camera array. These days, players at all levels have a variety of high-tech tools to help them up their games. We've already taken a look at how modern technology can help if you're training for golf and soccer. Now it's time to check out some options you might want to consider the next time you hit the courts. Below you'll find devices to smarten up your racquet and your shoes, as well as fitness trackers and apps designed to up your game no matter what level you are. Tennis anyone?
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