Scary scene unfolds as 49er injured on kickoff

San Francisco 49ers running back Trenton Cannon was taken off the field in an ambulance after a scary collision on the opening kickoff in a 30-23 loss at Seattle on Sunday.

Cannon, playing on the kickoff coverage team, was attempting to make a tackle when his head hit the leg of a teammate. San Francisco’s training staff immediately ran onto the field and stabilized Cannon’s neck. He was eventually loaded onto a stretcher and into an ambulance on the field.

Cincinnati Bengals quarterback Joe Burrow dislocated his pinky finger when he was sacked on the Bengals’ first offensive series. He said it popped back into place on its own and didn’t affect his passing. Burrow was 24 of 40 for 300 yards in a 41-22 loss to the Los Angeles Chargers. He was sacked six times.

“I can’t imagine it getting any worse,” he said. “If it doesn’t get worse, I’ll play next week.”

Chargers defensive lineman Joey Bosa left to be evaluated for a concussion in the first quarter. Coach Brandon Staley said Bosa did not have a concussion but was held out the rest of the game anyway. Defensive lineman Justin Jones suffered a knee injury. The Bengals lost linebackers Markus Bailey (shoulder) and Logan Wilson (shoulder) and cornerback Chidobe Awuzie (foot).

Chicago QB Andy Dalton, making his second straight start with Justin Fields sidelined because of broken ribs, matched a career high with four interceptions in a 33-22 loss to Arizona. He injured his left hand trying to make a tackle after getting picked off. Dalton said he didn’t think it affected his throwing, though he will have it checked this week. He was 26 of 41 for 229 yards and two touchdowns.

Minnesota wide receiver Adam Thielen, who entered Sunday tied for the NFL lead with 10 touchdown catches, sprained his left ankle on the opening drive of a 29-27 loss to previously winless Detroit and didn’t return.

Also injured Sunday were Falcons safety Richie Grant (ankle) and linebacker Adetokunbo Ogundeji (ankle); Buccaneers cornerback Jamel Dean (concussion) and running back Ronald Jones (illness); Lions defensive tackle Nick Williams (hand, wrist) and cornerback Jerry Jacobs (neck); and Dolphins wide receiver Jaylen Waddle (cramps) and running back Patrick Laird (knee).

Field judge Mike Weatherford left early in the fourth quarter of the Ravens-steelers game after getting tangled up with Chase Claypool following a 40-yard gain.