The 49ers continue to have strong health on their 53-man roster. The only player not to practice Wednesday was running back LaMichael James. He suffered a knee injury in the preseason. He is expected to miss another week or so.Cornerback Nnamdi Asomugha was practicing fully. He was limited last week because of a collarbone injury. But he played excellent in Sunday's win over Green Bay, so it's no surprise he is off the injury report.