GLENDALE, Ariz. — It’s like staring at the sun. You can get badly burned by extreme exposure. Jordan Schroeder doesn’t stare at sports pages or tune into radio rants about what the Vancouver Canucks require to make the playoffs and have a prolonged run. He looks at the current roster and knows his first season in the NHL must be of significance because the quest to add at least a third-line centre has been there since the summer. And with the April 3 trade deadline approaching — and injuries to the forward ranks mounting — the physical challenge of a diminutive player trying to make it in a big man’s game can be dwarfed by the mental challenge of dealing with it all.