John Klingberg, former defenceman for the Toronto Maple Leafs, has not fully recovered from a previous injury, and is not ready to return to play.
Klingberg only played 14 games with the Maple Leafs last season, in which he had 5 assists, and did not score a goal. He finished with a not so stellar +/- of -7. The Leafs signed Klingberg as a free agent to a 1 year contract worth over 4 million dollars prior to the start of last season.
It's pretty safe to say, the Maple Leafs didn't get what they were hoping for when they signed the former Stars defenceman last season. It will be interesting to see if any teams, including the Leafs, decide to sign Klingberg once he announces he is ready to return to the ice.