Twitter is exploding with news that Arian Foster could require back surgery, ending his season. The Texans haven't disclosed what's wrong with Arian Foster's back. He could end up having surgery and not playing again this season. - @McClain_on_NFLWith the Houston Texans at 2-6 this is no big deal for the team, but for fantasy football owners, who on average drafted Foster 6th overall, this would be a huge blow. He is already ruled out for Sunday's action.Foster has only managed a single rushing touchdown all season long (1 TD receiving) but is averaging 4.5 yards per carry and rushed for over 500 yards. Clearly Ben Tate is the man going forward in Houston, but he is also injured, playing last week with broken ribs. Tate is also averaging 4.5 yards per carry, has rushed for 399 yards and scored a single TD. Dennis Johnson is the Texans backup RB now and carried the ball 8 times for 36 yards in his NFL debut last week against the Indianapolis Colts. He is worth an add to your roster with Tate's health a huge issue.Other 1st round fantasy picks that have disappointed this season include Doug Martin, Ray Rice and Trent Richardson.