A versatile, impact winger with front-line potential, there's so much to like about Matthew Tkachuk, a prospect the Calgary Flames were delighted to have fall to No. 6 in the NHL draft.

But there's a specific trait, one not mentioned on the broadcast and apparently lacking in the Flames' system, that a stubborn mind high up on the chain of command, is still swooning over.

"He's kind of a pain in the ass," Brian Burke said of Tkachuk, according to TSN's Frank Seravalli. "We don't have enough pains in the asses. Way I like to play, we need pains in the asses."

There are some players that might fit that bill, though that's certainly open for interpretation. But none are on a direct line to skate opposite Johnny Gaudreau on a top line down the road.

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