New Jersey Nets' guard Jason Kidd underwent an MRI today, October 18, which confirmed a strained lower back, which he incurred at practice on Sunday, October 14.  Following the MRI, Kidd was administered an epidural to aid in reducing the inflammation of the area surrounding the disc.  Kidd is expected to return to practice during the week of October 22nd, but there is no timetable for an exact date as to his return.