3. Kettlebell
Former Super Bowl champion Omar Bolden, an ISSA-certified personal trainer, creator of X2 Workouts, and owner of Optymyze Training, explained that because of the number of exercises you can do with a single kettlebell, they’re a perfect addition to any home gym. They’re great for building muscle, increasing endurance, and strengthening the core – everything a tennis player needs to succeed on the court! He likes the JAXJOX KettlebellConnect ($229) because “its smart technology allows you to adjust the weight from 12 to 42 lbs.”