Introducing Yonex VCORE Si 21JR Tennis Racquet (Strung) to young starter players in the right way is critical. As well as helping players to develop a range of physical skills, the red, orange and green stages, gradually teach tactical and technical elements of the game on smaller courts using slower balls.
Our playtesters' favorite shot to hit with the VCORE Si 100 was the return of serve, where the maneuverability and spin potential allowed us to go after the ball with confidence.
The one issue we had with the VCORE Si 21JR was that it felt a bit stiff and unforgiving when we made contact outside of the sweet spot. Overall, we believe this fast, spin-friendly frame is another solid offering in Yonex's impressive line of racquets.