This article is part of our Injury Analysis series.
The Cowboys Pro-Bowl receiver left fantasy owners reeling Sunday after he made a quick exit in the team's loss to the Jets. Cooper aggravated a quadriceps contusion on the team's first drive and finished the day with one reception for three yards. The injury has been diagnosed as a quadriceps contusion, and Dallas is already speculating he will not be available for Week 7.
The quadriceps is a complex muscle group located on the front of the thigh. This powerful unit is made up of four muscles that share a conjoined tendon. The quad is a two-joint muscle and is responsible for both hip flexion and knee extension. While a contusion of the muscle doesn't sound as serious as a sprain or strain, the injury should not be taken lightly. Soft tissue damage to the quad is often very painful and limits the functional capabilities of the muscle group. As a result, the aforementioned motions carried out by the quad become difficult, and more stressful activities like running or jumping can become nearly impossible to complete without eliciting pain. Clearly a limitation here would be detrimental to a receiver who must make sudden starts and stops to complete their various routes.
Recurring quad contusions also run the risk of developing into a more significant condition known as myositis ossificans (MO). MO is marked by the build up of tiny calcified formations within the damaged area of the muscle, most often if the same area is repeatedly damaged or