Source: Matt Niskanen is retired from hockey regardless of paper status
Flyers will be without Matt Niskanen for game 6 vs Canadiens
Flyers trade prize Matt Niskanen's true worth may come in the locker room, not on the ice
Ex-Penguins defenseman Matt Niskanen finds success with Flyers | TribLIVE.com
Matt Niskanen - Wikipedia
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Flyers' Matt Niskanen suspended for Game 6 after breaking Brendan Gallagher's jaw - ESPN
Niskanen to have hearing for actions in Flyers game
MELTZER: Getting the Job Done
Capitals trade Niskanen to Flyers for Gudas, clear cap space | AP News
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Capitals trade Matt Niskanen to Flyers for Radko Gudas
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Philadelphia Flyers Matt Niskanen Retiring From NHL - LWOH
Flyers Acquire Matt Niskanen In Trade With Capitals For Radko Gudas - CBS Philadelphia
Niskanen announces retirement from NHL
A first look at Matt Niskanen in a Philadelphia Flyers jersey
Philadelphia Flyers: Players can lean on Matt Niskanen during playoffs
Flyers' defenseman Matt Niskanen is leading by example
Capitals play tribute video for Matt Niskanen
Capitals put top D-man Matt Niskanen on long-term injury list - ABC7 New York
FLYERS MATT NISKANEN HANGS 'EM UP, PASSING ON $5.75 MILLION! | Fast Philly Sports
Flyers Playoff Player Review: Matt Niskanen
Flyers See Matt Niskanen Retire, Extend Justin Braun to Help Fill the Hole
Matt Niskanen A Player To Watch For Flyers vs Devils
