Robertson will not receive a qualifying offer from the Flyers on Monday, Kevin Kurz of The Athletic reports.
Robertson notched 13 goals and 15 assists in 63 regular-season games with AHL Lehigh Valley, but he has been unable to force his way into an NHL game. At 23 years of age, the door isn't completely shut on the center's future, though he certainly faces an uphill battle to be more than a minor-league player.