<p> The Houston Texans worked out former Oakland Raiders outside linebacker Eric Harper when they also auditioned outside linebackers Quentin Groves and Lawrence Sidbury, according to a source.</p> <p> Groves and Sidbury are being signed by the Texans.</p> <p> Harper was on the Raiders' practice squad last season.</p> <p> He was signed to a reserve-future deal.</p> <p> However, the Raiders cut him following the NFL draft.</p> <p> Harper played collegiately at Grambling and Louisiana Tech.</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>