PITTSBURGH -- The Steelers have kept all of their 2014 draft picks in some capacity.
Joining those two on the practice squad are defensive ends Josh Mauro and Nick Williams, wide receivers Derek Moye and C.J. Goodwin, outside linebacker Howard Jones, safety Ross Ventrone, running back Josh Harris and offensive tackle Alejandro Villanueva.
All players had to pass through waivers unclaimed before the Steelers could sign them to their practice squad.
The Steelers did not sign any offensive linemen to their practice squad since they kept nine on the 53-man roster. Moye returns to the practice squad after spending all of last season on the 53-man roster.
Moye essentially switched spots with former Penn State teammate and good friend Justin Brown.
Richardson and Blanchflower are among the seven rookies on the practice squad, and they were fifth- and seventh-round draft picks, respectively.
A knee injury sidelined Richardson for the final three preseason games and prevented the Arizona product from making a serious run at the 53-man roster. The addition of Richardson and Blanchflower to the practice squad means all nine of the Steelers' draft picks in May are still with the team.
Six picks made the 53-man roster and the Steelers placed linebacker Jordan Zumwalt, a sixth-round selection, on injured reserve late last week.
Mauro and Jones are among the undrafted rookies who flashed in training camp and the preseason who earned spots on the practice squad.
The Steelers are off today and return to practice Monday morning.