Coyle posted an update on his personal Twitter account Thursday, stating his back injury "will prevent me from returning to the field again."

EDGE Analysis

Primarily a special teamer during his first three seasons, Coyle logged 57.4 percent of the defensive snaps in 2017 en route to a career-best 64 tackles in 16 games with the 49ers. The elevated role extended into Week 1 of last season, but he sustained a concussion and fractured vertebrae in that contest and missed the rest of the campaign. It's unclear which injury will force him to hang up the cleats, but Coyle is calling it a career.

Coyle (back) was released with a failed physical designation, freelance NFL writer Howard Balzer reports.

EDGE Analysis

Coyle was previously reported to be ready to return but his physical suggests he's still dealing with the back injury that sidelined him for 15 games in 2018. He'll have to return to health before he's able to catch on with another team for 2019.

Coyle was released by the 49ers on Thursday.

EDGE Analysis

Coyle played a large role for the 49ers in 2017 but played only a single game in 2018 due to a broken bone in his back. The linebacker is reportedly ready to go for 2019 and could catch on with another club as a backup linebacker.

Coyle (concussion) suffered a broken bone in his back in addition to a concussion, Nick Nick Wagoner of ESPN.com reports.

EDGE Analysis

Coyle was placed on injured reserve Wednesday, meaning the linebacker will miss at least six weeks while he works to recover. He could be a candidate to return as the season progresses, but San Francisco won't make a definitive choice in the near future.

Coyle (concussion) was placed on injured reserve Wednesday, Matt Maiocco of NBC Sports Bay Area reports.

EDGE Analysis

Coyle suffered the concussion during Week 1's matchup against the Vikings, when he started in place of Malcolm Smith (hamstring). With Coyle relegated to IR, the 49ers will rely on Fred Warner as their starting middle linebacker versus the Lions on Sunday.

Coyle suffered a concussion Sunday against the Vikings, Matt Barrows of The Athletic reports.

EDGE Analysis

Coyle started in place of Malcolm Smith (hamstring) in the season opener. If the 27-year-old is able to clear the concussion protocol in time to suit up for Week 2's matchup against the Lions, he stands once more to play a key role in the 49ers' defense.

Coyle will start Sunday against the Vikings, Matt Maiocco of NBC Sports Bay Area reports.

EDGE Analysis

Coyle will replace Malcolm Smith, who is listed as doubtful with a hamstring injury. He'll be tasked with slowing down Vikings' running backs Dalvin Cook and Latavius Murray. The 27-year-old has plenty of experience, as he was a rotational linebacker for the 49ers in 2017, making 64 tackles in 16 games.

Coyle (knee) recorded three total tackles in Saturday's preseason game against the Colts.

EDGE Analysis

Coyle had been out or limited since the early portions of training camp with a knee injury, but given that he was able to play 29 snaps and provide decent production for the 49ers on defense, it appears the linebacker is back to 100 percent.

Coyle (knee) was a limited participant in Monday's practice, David Lombardi of The Athletic Bay Area reports.

EDGE Analysis

It was originally reported Sunday that Coyle would be held out of practice this week and miss Thursday's preseason opener, but it looks like the linebacker could have a better outlook. Given that he was just a limited participant, it's still likely the 49ers hold Coyle out of Thursday's contest, but the fact that he is on the practice field suggests that he could be farther along than originally thought.

Coyle (knee) will not practice this week and has been ruled out for Thursday's preseason opener against the Cowboys, David Lombardi of The Athletic Bay Area reports.

EDGE Analysis

It looks like the 49ers are just being cautious with Coyle, as they fully expect the linebacker to be back in action next week after a week of rest. Coyle is potentially in line to take on a starting role on defense to start the season with Reuben Foster serving a two-game suspension.