The Yakult Swallows are trying out Mizuno’s MAQ. It is a device that measures ball movement (spin, axis, and velocity). Yoshinori gave the ball a try during a bullpen session on November 6 and hit 2,022 rotations.
Yoshinori pushed his weight from eighty-five to around ninety kilograms after the 2017 season.
Source: Sanspo 1/22/2018