A person with knowledge of the medical tests tells The Associated Press that the Denver Nuggets have received positive news about forward Cameron Johnson. An MRI revealed Johnson has only a bone bruise on his right knee, not any ligament or structural damage. The person spoke to The Associated Press on condition of anonymity because the team didn't announce the results of Johnson's MRI. Johnson was injured during the fourth quarter of Denver's 131-130 loss at Dallas on Tuesday night. There's no timetable for his return, but he's expected to miss a few games. The Nuggets host the Minnesota Timberwolves on Christmas night.