He missed the last five games of the season with a hamstring injury .
Just prior to last season 's training camp , Seidenberg suffered a spinal disc injury in training that would require surgery , and he missed the first month of the season .
Seidenberg missed the last five games of the season with a hamstring injury .
Just prior to last season 's training camp , Seidenberg suffered a spinal disc injury in training that would require surgery , and he missed the first month of the season .