NBA Training Days - MarShon Brooks - Trailer (. Training Systems)

Boston Celtics Shooting Guard MarShon Brooks works with trainer Karl Jacobson. In preparation for the 2013-2014 NBA season, MarShon Brooks trained with the experts at . Training Systems, an elite training program located in Cleveland, Ohio. The “NBA Training Days“ series documents their process. . Training Systems (Total Athletic Performance Enhancement) is based out of Cleveland, Ohio.