"It obviously is a blow," Raiders coach Jack Del Rio said. "That's what teams do; teams have to find a way to pick up and move on. We'll rally around the next guy as best we can. That's what you do."
McGloin has started six games in his career, though none since 2013. He has a career passer rating of 76.2 with 1,818 passing yards while completing 58.2 percent of his passes with 11 touchdowns and 11 interceptions in 11 career games.
"I'm ready to go," said McGloin, a former Penn State quarterback. "I feel great and it has been great working with Derek Carr the past few years and working together and seeing what he has done on the field, trying to learn from that."
Carr’s injury came on a play with 10:55 remaining in the game when he stepped up in the pocket to avoid the rush. It was the first sack of the year allowed by Pro Bowl left tackle Donald Penn.
"I slip on one play ... I ain't never got a quarterback hurt in my whole career and I'm just upset right now," Penn said.
Before Carr’s injury, the main question was whether the Raiders might be peaking too soon. That’s how well they were playing in building a 26-point lead -- no “Ghost to the Post” heroics needed on this Christmas Eve against the Colts.
After the Raiders had an NFL-high seven Pro Bowlers named this week to the league’s all-star game, no one should have been afraid to say that Carr was back in the conversation for NFL MVP.
Or that Del Rio should be in the running for NFL Coach of the Year. Same with general manager Reggie McKenzie and the league’s Executive of the Year honor.
The Raiders have gone from an 0-10 start two short seasons ago to 12-3 with one game to play, at the defending Super Bowl champion Denver Broncos on New Year’s Day.
The Broncos (8-6) have fading playoff hopes and play at the Kansas City Chiefs (10-4) on Sunday night.
Should the Broncos beat the Chiefs, the Raiders would clinch at least the No. 2 seed in the AFC and get a bye and an accompanying home playoff game the weekend of Jan. 14-15.
But if Kansas City wins at home against Denver, the Chiefs would remain one game back of the Raiders entering the final weekend holding the tiebreaker over Oakland. The Chiefs play at the San Diego Chargers next weekend.
The Raiders also have a shot at the No. 1 seed and home-field advantage throughout the playoffs. Oakland would have to win at Denver, while the New England Patriots would have to lose at Miami.
It may, though, all come down to how well the Raiders adjust to McGloin at quarterback.