The Vikings made it official: Nose tackle Linval Joseph (foot) and strong safety Andrew Sendejo (knee) have been listed as out for Sunday's game against the Seahawks at TCF Bank Stadium.

Sharrif Floyd will move from the three-technique tackle spot and make his first start at nose tackle. Tom Johnson will make his fifth start at the three-technique. The Vikings went 4-0 with him starting the three games that Floyd missed and the first game after his return from injuries.

At safety, Antone Exum is expected to make his second career start and his first at strong safety. His starting debut came last week when he started at free safety in place of Harrison Smith.

Meanwhile, free safety Harrison Smith (knee) and linebacker Anthony Barr (hand/groin) were listed as questionable but are expected to play after limited participation in Friday's practice.

Listed as probable after full participation in practice were safety Robert Blanton (ankle) and cornerback Trae Waynes (ankle). Waynes miss last week's game because of his injury.

This will be Joseph's first missed game of the season. He ranks second among NFL defensive linemen with 54 tackles. Houston's J.J. Watt is first with 55.

"Of course it's going to be frustrating," said Joseph, whose right big toe was heavily taped. "But I'm just glad I can still support my team and go out there and just use my eyes and be a coach."