Philip Rivers (back) practices in advance of playoff play-in gameThe Chargers' QB is on track to start despite dealing with a reported bulging disc in his back.SI Staff|Share on FacebookShare on XAdd us as a preferred sourceThe Chargers' QB is on track to start despite dealing with a reported bulging disc in his back.Add us as a preferred source on GoogleFollowLoading recommendations... Please wait while we load personalized content recommendationsPublished Dec 26, 2014 | Modified Dec 26, 2014SI STAFFShare on FacebookShare on XHome/NFL