Unheralded Graham Martinson, another sophomore, makes difference from 3-point line for Yorkville. ‘Earned it.’

Unheralded Graham Martinson, another sophomore, makes difference from 3-point line for Yorkville. ‘Earned it.’

Yorkville forward Graham Martinson isn’t as well known among even the most avid high school boys basketball fans along the Fox River, but that should be changing pretty soon. Meet the other sophomore this season on the Foxes’ varsity. Martinson is a 6-foot-3 sharpshooter from the 3-point line who was a surprising addition to the team, joining high-profile classmates Joey Jakstys and Braydon Porter in the starting lineup. The 6-8 Jakstys and 6-4 …