Iowa State defensive tackle Domonique Orange impressed NFL teams at his campus workout, showing that he has recovered from a quadriceps injury.Orange is also set to visit the Buffalo Bills, Minnesota Vikings, Carolina Panthers and the Chicago Bears. Hes regarded by NFL teams as a classic, space-eating anchor in the middle of the defense.Orange, nicknamed Big Citrus, is scheduled to visit the Texans at NRG Stadium, per a league source.The Texans attended his Pro Day workout and helped run the drills.Orange (6-foot-2, 322 pounds) was a third-team All-Big 12 Conference selection last season.He had a 5.1 40-yard dash and bench pressed 225 pounds 27 times at his Pro Day.Orange had 18 tackles last season, starting every game.The Kansas City native had 24 tackles, 4 1/2 for losses and a sack as a junior.Aaron Wilson is a Texans and NFL reporter for KPRC 2 and click2houston.com