Matthew Knies keeps surfacing in trade rumors, and Mike Johnson has a simple explanation. He's the most movable valuable piece Toronto has.

Johnson put it bluntly on OverDrive. "They can't trade Nylander or Matthews, the next most attractive player is him."

That's the whole logic. The biggest names are effectively off-limits, so by process of elimination, the conversation lands on Knies.

The reasons the others are stuck aren't complicated. Auston Matthews is the franchise face. William Nylander sits on an $11.5 million deal. Status and contracts make both nearly impossible to move.

So that leaves Knies, 23 years old, a $7.75 million cap hit, fresh off 66 points. Young, productive, and tradeable.

Johnson broke it down on the panel, and the reasoning is hard to argue with.

The untouchables are why Knies is the one on the block

There's a double edge to this. Being labeled the most attractive asset is a compliment to Knies's value. The Rangers have called about him for a reason.

But it also exposes a problem. When your expensive stars can't be moved, you're pushed toward trading your best young, cheap player instead. That's roster-building in reverse.

Connect it to the Trocheck chatter and the bind sharpens. New York wants Knies, and Toronto has inquired about Vincent Trocheck in return.

The trouble is Knies is the better long-term asset. Moving a 23-year-old for a 32-year-old center would be paying the wrong direction to solve a need.

Here's my read: Johnson nailed the why, but it shines a light on Toronto's real issue. The rumors swirl around Knies because the actual cap problems, the big contracts, are the ones that can't budge.

Trading the wrong player to escape the right problem is a trap. You don't fix an aging, expensive core by shipping out the cheap, ascending piece propping up the future.

Knies is in the talk because of who can't be moved, not because he should be. That distinction matters.

The real question is whether Toronto actually deals its best young winger, or finally finds a way to address the contracts that started this whole conversation. The summer will tell.

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A Toronto Maple Leafs star is on his way out and the trade imminent

Should the Leafs keep Matthew Knies untouchable in trade talks?

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