Maple Leafs' John Klingberg: Suffers undisclosed injury

Klingberg will miss Friday's tilt versus Calgary with an undisclosed injury, according to Jonas Siegel of The Athletic.

Klingberg has been a major disappointment this season, picking up five assists in 13 games. He was expected to quarterback the top power-play unit, but he has been replaced by Morgan Rielly. Klingberg could return to the lineup as early as Saturday versus the Canucks.