The hit that sidelined Kings defenseman Drew Doughty with an upper-body injury for a week to 10 days continued to produce a domino effect. Dustin Penner, who instigated a fight with Flyers rookie forward Zac Rinaldo after his first-period collision with Doughty on Saturday night in Philadelphia, left the ice midway through practice Monday at Toyota Sports Center because of a knee injury suffered during the skirmish. Despite being "reassured" by a doctor in Philadelphia and the Kings training staff that the injury was just a bruise, coach Terry Murray said Penner decided to have the injury further examined by the team physician. "He wanted to get it checked out by the doctor and see if there's anything further on that," Murray said. "The plan was full practice (Monday) and there was nothing before the practice that was going to lead me to think that it was going to be anything different than that, so obviously it's bothering him."