"Less than an hour after the Cardinals' season ended, quarterback Kurt WarnerKurt Warner promised he wouldn't take long to decide if it would be his last.

Warner appears ready to make good on that pledge, with a news conference scheduled for Friday at the team's Tempe facility to announce his decision.

Warner, 38, is expected to retire after 12 seasons, including the past five with the Cardinals. A friend who talked with Warner after the Cardinals lost to the New Orleans Saints in the playoffs said "it sounded like he was done."

As of Wednesday afternoon, Warner had not informed the Cardinals of his decision, and the team has not announced the timing of a news conference. But Warner's agent, Mark Bartelstein, said "there will probably be a press conference on Friday."

Bartelstein wouldn't reveal Warner's decision. "That's for Kurt to say," he said.

Warner's retirement wouldn't shock anyone. He has considered it after each of the past two seasons, but decided quickly that he wanted to continue playing. So if this is the decision he announces Friday, it would not catch the Cardinals off guard."