Texans coach Bill O'Brien has a lot of familiarity with new offensive guard Dorian Johnson.
When O'Brien was at Penn State, he recruited Johnson. Johnson wound up going to Pitt, where the 6-5, 300-pound lineman became an All-Atlantic Coast Conference blocker.
The Texans signed Johnson off the Arizona Cardinals' practice squad on Wednesday. Johnson was drafted in the fourth round in the spring, but didn't pan out immediately for the Cardinals.
Johnson fell in the draft due to a liver condition that was a red flag for some NFL teams.
"I would put him in the developmental category," O'Brien said.