The Dallas Cowboys have just issued a shocking announcement as they prepare to take on the San Francisco 49ers tonight on Sunday Night Football.”

From the team; “Upon arriving at the stadium, running back Rico Dowdle became sick. He is being evaluated by the team’s medical staff, and his game status is now questionable.”

The much-rumored Dalvin Cook move to the Dallas Cowboys 53-man roster went official early Saturday afternoon. Then was to come a series of domino-effect decisions.

With the Cowboys saddled with the worst run game in football, averaging just 77.2 yards per game, the bye week clearly gave the coaching staff enough information to say that Cook deserves his shot.

Early in the week here at The Star in Frisco, coach Mike McCarthy stated that Cook is in “position to play” against the San Francisco 49ers on Sunday night.

Amid reports that Dalvin is “tearing it up” in practice? The four-time Pro Bowler, now 29 and hoping to catch some of that old lightning in a bottle, is moving on up.

And there’s more: A source told CowboysCountry.com that Dallas can “envision” Cook getting the sort of work on Sunday that would make him the first-team running back.

The elevation from the practice squad is coming with the team’s public claim that Cook is now “football ready; Cook himself might gently argue that it didn’t take him two months on the practice squad to achieve that feat.

Some will say it should be Rico Dowdle and Cook as the one-two punch, with Ezekiel Elliott behind them. But now? If Rico is sick? Obviously Cook and Zeke move up the depth chart, as does Hunter Luepke. There might also be impactful ripples for Deuce Vaughn and for what Dallas does at cornerback, too.

However it unfolds, the Cowboys already had a new “vision.” And it includes a possible new starter in Dalvin Cook. … and a possibly too-sick Rico Dowdle.