Vikings' Jaren Hall out with concussion; Josh Dobbs in at QB - ESPN

ATLANTA — Minnesota Vikings quarterback Jaren Hall suffered a concussion in the first quarter of his first NFL start Sunday and will not return to the game, the team announced.

Hall suffered the injury at the end of the team's second possession after a 3-yard scramble on third down. He was hit hard by Falcons cornerback Jeff Okudah and linebacker Kaden Elliss and the back of his helmet hit the turf hard at Mercedes-Benz Stadium. Players and officials immediately began signaling for medical personnel, although Hall eventually walked off the field under his own power.

Vikings place-kicker Greg Joseph converted a 19-yard field goal to tie the game. Hall was replaced by Josh Dobbs, whom the Vikings acquired last week from the Arizona Cardinals following a season-ending Achilles injury to starter Kirk Cousins.

The Vikings also lost receiver K.J. Osborn to a concussion with 4:06 remaining in the second quarter. Just after pulling in a 13-yard pass from Dobbs to convert a third-and-8, Osborn was hit in the head by Okudah. Osborn lay motionless for several moments and was eventually surrounded by the entire Vikings team on the field.

Medical officials initially took out a back board but Osborn eventually stood up and walked over to a cart under his own power. He gave a thumbs-up as he was driven into the Vikings' locker room. The injury left the Vikings without two of their top three receivers. Justin Jefferson remains on injured reserve because of a hamstring injury he suffered last month.

Hall completed five of six passes for 78 yards in his brief stint. Dobbs was sacked for a safety on his third play in the game.

The Vikings began the season with veteran Nick Mullens as Cousins' primary backup, but Mullens has been on injured