Clinton Portis is expected to see his first preseason action this Saturday when the Redskins host the Pittsburgh Steelers at FedExField.

Portis could play one or two series in the game, head coach Jim Zorn said.

"I'm not going to put Clinton out there a long time," Zorn said. "He is going to play and we'll just see how it goes. You won't see him past the first quarter, and you may not see him to the end of the first quarter."

Last year, Portis played in two of five preseason games.

Entering his eighth NFL season, Portis has had an "awesome camp," Zorn added.

"When he has participated, he has worked hard, run hard and he is learning well," Zorn said. "This is part of his camp. As we get closer, he'll pick up his pace and we'll get him more and more reps.

"We're trying to find a lot out about other guys, so for what we've asked him to do and what he has done, I'm very pleased."

Following Monday afternoon's practice, Portis was asked if he had talked with Zorn about his workload for the upcoming season.

"There isn't a need to talk about the workload," Portis said. "Break the huddle, I'll be out there. When he decides to take me out, that's when I'll come out. But I will be out there."

Portis reiterated that the Redskins' offense made too many mental mistakes in the 23-0 preseason loss to the Baltimore Ravens last Thursday.

"Our number one thing is to focus," Portis said. "We had a lot of mental errors--we have to cut that out. Of course, we want to come out in these games and score more points and win, but at the same time, you need to see the progress. We can't have penalties, or mental errors.

"Everybody knows where we went wrong. It's not like we need to go back to the drawing board and come up with a whole new game plan. We're going to still go out and run those same plays, we just have to execute better."