PITTSBURGH — Ryan Clark may be saying everything he needs to say with his growing silence. The Pittsburgh Steelers safety is usually one of the team’s most talkative players. But he is talking little as it becomes increasingly likely he won’t play Monday in Denver due to a rare blood condition that nearly caused him to die after playing there two years ago. Nearly all of Clark’s teammates are urging him to skip the game. The other Steelers safeties are being readied to play, and Clark does not appear as upbeat or as excited as he normally does before a game. During a time he often chats with reporters, Clark sat alone in front of his locker, scanning messages on his cell phone before practice on Thursday. Even if Clark pleaded with them to play, the Steelers appear reluctant to take a chance considering how seriously ill he became after that 2007 game, which Denver won 31-28.