* A few years ago, the Carolina Hurricanes tried to trade a player named Martin Necas to another team. They wanted to get a star player named Matthew Tkachuk.
* The other team didn't make that trade, but it ended up helping the Colorado Avalanche get Martin Necas for their team. This was a big deal because it helped the Avalanche stay strong in their league.
* Because the Avalanche got Necas, it also changed where other players like Nazem Kadri decided to play. It shows how one trade can affect many teams in hockey.