He did n't become a full - time NHLer until 2014 - 15 at age 25 .
A 27 - goal campaign followed by a 29 - goal season a year ago has made his long and winding journey worth the growing pains .
He did n't become a full - time NHLer until 2014 - 15 at age 25 , but a 27 - goal campaign followed by a 29 - goal season a year ago has made his long and winding journey worth the growing pains .