CALGARY, Alberta (AP) - Calgary Flames defenseman Dennis Wideman sent linesman Don Henderson to the ice when he checked him from behind during a game against the Nashville Predators. In the second period Wednesday night, Wideman was skating toward the Flames' bench when he cross-checked Henderson, who had his back to the defenseman. Moments earlier, Wideman had taken a hit from the Predators' Miikka Salomaki. Wideman said after the game that his hit to Henderson was unintentional. "I took a pretty hard hit down in the corner and had some pretty good pain in my shoulder and my neck and...