Whakakihia te rerenga e whai ake nei: I te tau 1991, i tohua a Gratton hei tuatoru i te katoa i roto i te Whirihoranga Whirihoranga OHL na te Kingston Frontenacs. Whai muri i tana tau rookie i te OHL, i whakawhiwhia a Gratton ki te Emms Family Award hei rookie o te tau. I te tau 1993, i tohua ia hei tuatoru i te katoa i roto i te
NHL Draft nā ngā Tampa Bay Lightning.