Muscle tightness in legs after soccer. Am I out of shape?

Fatigue? A myriad of causes can result in muscle tightness such as fatigue and cramping. Proper stretching and hydration can improve the symptoms. However if symptoms persist further evaluation is needed to rule out neurologic causes, stress injury and inflammation, strain and disorders of muscle. Discuss this with your physician.
Muscle tightness. Muscle tightness after soccer usually relates to a build up of Lactic Acid and may be better related to intensity and duration of play.