RENTON, Wash. (AP) - Seattle Seahawks coach Pete Carroll says he cannot comment on the possibility of his starting cornerbacks, Richard Sherman and Brandon Browner, facing a four-game suspension for violating the NFL's policy on performance-enhancing drugs.

Carroll didn't say much about the situation during his radio show Monday morning on 710 ESPN in Seattle. ESPN.com first reported Sunday afternoon, following the Seahawks' 24-21 loss at Miami, that Browner and Sherman are facing suspensions and are in the process of appealing. The team has only said it is aware of the report.

Messages left for Sherman's representatives have not been returned. Browner's representatives said Sunday they would not comment until the team had returned to Seattle, but had yet to follow up.