According to a report, the Browns (and fantasy owners) will be without running back Peyton Hillis this week (and possibly more). According to Mary Kay Cabot of the Cleveland Plain Dealer, Hillis re-injured his hamstring during Friday's practice and an MRI shows that "he significantly aggravated the muscle." In addition, Hillis is frustrating his teammates. “I’ve never seen anything like it,” says one Browns veteran (via Mike Silver of Yahoo! Sports).