49ers News: Nick Bosa to Miss Entire Preseason After Ankle Injury

Tim Daniels@TimDanielsBRFeatured ColumnistAugust 8, 2019

San Francisco 49ers' Nick Bosa adjusts his helmet at the team's NFL football training camp in Santa Clara, Calif., Saturday, July 27, 2019. (AP Photo/Jeff Chiu)
Jeff Chiu/Associated Press

San Francisco 49ers general manager John Lynch announced Thursday that rookie defensive end Nick Bosa will miss the entire preseason because of an ankle injury.

Lynch said during an appearance on KNBR Radio that Bosa suffered the "dreaded high-ankle sprain," per Matt Barrows of The Athletic.

"We won't see in the preseason and we'll go from there," Lynch said (via Matt Maiocco of NBC Sports Bay Area) "… We'll get him right and he'll be a great player for a long time in this league."

Bosa previously suffered a hamstring strain in May that forced him to miss portions of OTAs and minicamp.

The Niners selected the Ohio State product with the second overall pick in the 2019 NFL draft. He registered 17.5 sacks in 29 games across three years with the Buckeyes, but he was limited to three appearances in 2018 before undergoing core-muscle surgery last September.

Dee Ford, another projected starter at defensive end for San Francisco, is dealing with knee tendinitis.

So the 49ers' defensive line depth is already being tested. Ronald Blair and Solomon Thomas are likely to receive ample playing time with the first-team defense during the preseason. Arik Armstead could also shift to the edge in certain packages.

Although Lynch didn't rule Bosa out for the team's Week 1 game against the Tampa Bay Buccaneers, it's unclear whether the team would feel comfortable putting the rookie right into the lineup given his limited amount of practice time since the draft.

It's possible he could be used as a situational edge-rusher early in his career. He could make an impact in that role, but the Niners will need him to become an every-down asset to satisfy their top-five investment.

Ultimately, Bosa must stay healthy for an extended period before everything else can fall into place.