Friday morning, NFL Media Insider Ian Rapoport reported that RB Knowshon Moreno's lack of activity is due to his left knee, which has been bothering him this spring. It was sore yesterday, so the Dolphins had him take it easy -- it is not the knee in which he suffered a torn ACL in 2011.
Rapoport, citing a source who spoke to the player, reported that Moreno's knee did feel better than it had previously, however, arthroscopic surgery is possible. The running back plans to see a doctor in Miami next week to find out.
Arthroscopic surgery, commonly known as a "scope," typically involves the cleaning up of torn cartilage and usually involves a 3-4 week recovery time. If he has surgery, Moreno won't be able to get in shape while rehabbing his injury, so he may be further behind Lamar Miller in the competition to be the team's starting running back.