The 32-year-old joined the Leafs on a 1-year deal last off-season, but after just 14 games, he was forced to undergo surgery. Since he resumed skating and announced that he intended to resume his career, the Leafs had been considered a favourite to land the Swede.
Although most Leafs fans aren't exactly upset over missing out on signing another injury-prone player, the Leafs missed an opportunity to add an offensive punch to their blueline for nothing but cap space.
Had they managed to add Klingberg, they could have immediately moved the assets they may have delegated to the blueline to their search for a center, allowing them to go after a higher valued player than the usual depth addition. Not to say it isn't or wasn't going to happen anyway, but it would have been a guarantee instead of a possibility.