Houston Texans receiver Andre Johnson says he'll miss "a week or so" after a minor groin injury in the team's second morning practice. Johnson fell awkwardly running a route on Sunday morning and had an MRI exam later in the day that showed a "mild strain." "It just tightened up on me," the five-time Pro Bowl receiver said. "I had hit the ground pretty hard, stretching out for a ball. That was pretty much it." Johnson missed nine regular-season games last season with hamstring injuries and was sidelined from the first organized team activities in the spring after arthroscopic surgery on his left knee. Read more: http://espn.go.com/nfl/trainingcamp...re-johnson-suffers-mild-groin-strain-practice
