Dallas Clark leg injury is "significant"

While Colts HC Jim Caldwell wouldn't reveal many details about TE Dallas Clark's status on Monday, he did say that his lower leg injury is "significant" and that it'll cost him "more than a week."  We've even heard whispers that it's a season-ending injury.  Clark wasn't producing much anyways, so he's definitely droppable even as we wait for a more concrete update.  Jacob Tamme will step in as Indy's primary pass-catching TE, but there's not much upside there on a struggling Colts offense.