Bills receiver David Nelson is scheduled to start running on his own to test his strained right knee for the first time since getting hurt last weekend. Nelson said he plans to work out on his own Saturday and also during the Bills' day off Sunday. If all goes well, he expects to return to practice Monday. The Bills have only two full practices scheduled next week before opening their preseason at home Thursday against Washington. Nelson has been out since July 28, three days into training camp. Source: Associated Press