Standout Pittsburgh Steelers linebacker James Harrison sat out practice on Thursday, and indicated he would not say anything about his status for Sunday's season-opener against Denver until Friday.

Harrison had knee surgery last month and was activated last week. But he was limited in practice on Wednesday, and after missing practice on Thursday, he posted a pair of signs near his locker, according to CBSSports.com.

One sign read, "I will answer all questions on Fridays," and the second read, "And only Fridays."

Apparently that means Harrison will speak to the media only on Fridays this season.

However, Harrison did post a message on Twitter, saying, "I will be practicing tomorrow and (will) have a better (idea) if I'll be ready to go on Sunday night."