OWINGS MILLS, Md. -- Baltimore Ravens coach John Harbaugh repeatedly said he is unaware of any setback for first-round pick Breshad Perriman.

The No. 26 overall pick in this year's draft, Perriman was making progress from a sprained knee suffered in training camp and practiced on a limited basis twice last week. But he pulled up while tracking a deep ball before Sunday's game and hasn't practiced since.

This was the exchange between Harbaugh and a reporter after Tuesday's practice:

Reporter: Did Perriman have a setback because he hasn't practiced the last two days?

Harbaugh: I have no idea what you're talking about.

Reporter: In warmups, he was going after the ball ...

Harbaugh: This morning?

Reporter: No, Sunday's game.

Harbaugh: I have no idea what you're talking about.

Reporter: So was there any setback?

Harbaugh: I have no idea what you're talking about.

So, the uncertainty surrounding Perriman continues.