<p> Houston Texans star wide receiver Andre Johnson strained his right hamstring.</p> <p> “I just got a little tight, it was just a precaution,” Johnson said. “We’re going to go in and see what’s what. Just from the feeling of it, it’s not anything bad.”</p> <p> Texans coach Bill O'Brien described the injury as minor.</p> <p> Johnson missed the Texans' offseason program as he was disgruntled with the direction of the franchise.</p> <p> Now, he's back, but slightly injured.</p> <p> Follow me on Twitter: <a href="http://www.twitter.com/RavensInsider">@RavensInsider</a></p> <p> Aaron Wilson covers the Ravens for The Baltimore Sun</p>