Paxton Lynch will miss some time after suffering a high ankle sprain in his first start of the season Sunday.

The Denver Broncos’ starting quarterback is once again Trevor Siemian.

Lynch left late in the third quarter with the Broncos trailing the Oakland Raiders, 21-0.

Siemian came in and after a three-and-out in his first series, finished off his only two fourth quarter drives with touchdown passes of 25 yards to Cody Latimer and 22 yards to Bennie Fowler III.

The Broncos didn’t get the ball back to Siemian and lost, 21-14, their seventh loss in a row.

“I thought Trevor did a great job of being down for a week and being back on the roster, getting himself back engaged and playing good football,'' said Broncos head coach Vance Joseph. "That speaks to Trevor as a person to bounce back through adversity and come back and play a decent football game in the fourth quarter for us.”

Against the Raiders, Lynch flashed some of the skills and athleticism that made him the Broncos’ first-round draft pick, No. 26 overall, in 2016. He threw a beautiful 19-yard wheel route to running back Devontae Booker, who was initially credited with a 20-yard touchdown until replays showed his knee touching down at the 1 yard line.

Two plays later, Lynch tried to force a pass to tight end Virgil Green in the end zone, but it was batted around by Raiders linebacker NaVorro Bowman, then intercepted by Bowman, who had fallen on his back.

Lynch was 9 of 14 but for only 41 yards and he also ran twice for 20 yards before he hopped off the soggy Oakland Coliseum surface on one leg with his right ankle injury.

“I thought Paxton early in the football game made good decisions for us,'' Joseph said. "That drive we move down into the red zone and he throws the pick on the goal line there and it went downhill for him after that. He took some sacks holding the ball too long on occasions there. But, I thought he started off with the right frame of mind to play a good football game. Then certain things happened and it went downhill for the kid.”

Siemian came in and immediately went into 2-minute mode and completed 11 of 21 for 149 yards and two touchdowns.

Siemian played well early this season, leading the Broncos to a 3-1 record before the team collapsed. He was benched after the team lost three in a row to fall to 3-4, but a change in quarterbacks to Osweiler for three games and Lynch for one did not halt the Broncos' worst losing streak since 1967.

Peko has 2nd degree MCL strain

Broncos defensive tackle Domata Peko is about to lose his iron man streak. Peko will be out one or two games after suffering a second-degree MCL strain in his left knee during the second half of the game Sunday against the Raiders.

Peko had started 123 consecutive games,dating back to his 2010 season opener with the Cincinnati Bengals, the most among active NFL defensive linemen. Peko walked through the locker room Monday with a long, heavy brace around his left leg.