Jack Jones Broke Up Two Passes At The Chargers. Nate Hobbs Has Not Played A Preseason Snap.

Jack Jones, No. 25, broke up two passes at SoFi Stadium on Thursday night. San Francisco was credited with seven in the game, and no other 49er was credited with more than one. He played 29 of the team's 59 defensive snaps, the second-highest total among the ten cornerbacks on the roster.

Nate Hobbs, No. 22, did not play. He did not play in the preseason opener either. Neither game book's participation page carries his name.

That is the whole of the case, and it is enough to move both men. This board now grades Jones a 7 and has him inside the projected 53. It grades Hobbs a 5 and has him outside it. The roster is due Sunday, August 30 at 3:00pm PT, which is 6:00pm on the East Coast.

What Jones did, play by play#

The first breakup came at 7:18 of the second quarter, on third and goal from the San Francisco 3, with the 49ers ahead 3-0. Trey Lance threw a fade to KeAndre Lambert-Smith. Jones was in position, the ball fell, and Los Angeles settled for a 21-yard field goal that tied the game. Andrew Pasquini, at Niners Nation on Friday morning, has Jones getting away with some contact on it.

The second came at 1:21 of the same quarter, second and seven at the San Francisco 47, an incompletion intended for Devonte Ross. Two snaps later the Chargers threw short of the sticks on fourth and seven and turned the ball over on downs at the 42.

Kyle Shanahan, after the game: "I think every time they went at Jack, he knocked the ball down." The play-by-play names Jones on three plays. Two are the breakups. On the third, Lambert-Smith caught a six-yard pass and Jones made the tackle. Whether that one was his coverage the game book does not say, and it is the only place the coach's sentence and the document disagree at all.

PFF's grades for the game, published Friday by Jason Aponte at Niners Nation, rank Jones ahead of every other San Francisco defensive back who played. One grade off one preseason night is a lens rather than an argument, and it points where the countable things point.

The denominator belongs next to all of it. Jones took his 29 snaps against Lance and a Chargers second unit in a game San Francisco won 41-17. A share of them were Renardo Green's. Jones replaced Green at cornerback after Green pulled up in the first quarter, which is the club turning to him with a starter down and is also most of the reason the snap count reads 29. He left the August 13 opener himself, after eight defensive snaps, with a hand injury, and was back in uniform on the 15th. The card on this board has read "talent vs. history" since camp opened, and the history is real: drafted by New England in 2022, claimed off waivers by Las Vegas, terminated there, one season in Miami, one year here. Thursday moved the talent half in public, with a document behind it.

His 2025 is the part this board had underweighted. Over The Cap's participation table has Jones playing all 17 games for Miami at 91.5 percent of the defensive snaps, with 77 tackles, six passes defensed, an interception and two forced fumbles. That is a full season of a man on the field, and it is a better predictor of a roster spot than eight snaps in an August opener.

What Hobbs has and has not done#

The club's own recap of Day 9 of camp, published August 8, named Hobbs a defensive standout of the practice. Three days later he pulled a groin at the joint practice with Tennessee. Shanahan said on August 13 that he would be out "a few weeks," a phrase both 49ers Webzone and Pro Football Talk carried on August 14.

A few weeks from August 13 is somewhere between August 27 and September 3. The roster is due August 30. San Francisco opens the regular season against the Rams at the Melbourne Cricket Ground on September 10 at 5:35pm PT.

The timeline the head coach gave straddles the deadline and clears the opener. A September 3 return makes Hobbs available in Australia and unavailable on the day the club has to decide, and the decision does not wait for the diagnosis. Since the joint practice, the record on him is two game books with his name absent from both participation pages.

Green Bay signed Hobbs in March 2025 to four years and $48,000,000 with $16,000,000 guaranteed, played him in 11 games and 358 defensive snaps, 32.0 percent of its total, and released him after the one season, carrying $4,000,000 of dead money this year and $8,000,000 next. His counting line across those 358 snaps was 27 tackles, no interceptions and two passes defensed. Jack Jones was credited with two passes defensed on Thursday night, on 29 snaps.

The money, which does not do what money usually does#

The standard reason a hurt veteran survives a cutdown is that his contract makes him expensive to move. That is not the case here, and the numbers are small enough to state.

Hobbs signed a one-year deal worth $3,500,000 with $3,110,000 guaranteed. His 2026 cap number is $3,380,000. Over The Cap's release scenarios, read directly off his page, put the dead money at $3,110,000 and the cap saving at $270,000. San Francisco owes him the guarantee whether he is on the roster or not. The roster spot is the only thing at stake, and $270,000 is not a reason to keep one.

Jones signed for $1,215,000 with nothing guaranteed, against a cap number of $1,075,000, all of which comes back if he is released. Neither contract protects its man. Both of these jobs are being decided on football.

The room, and the thing that could break it open#

San Francisco's cornerback group runs ten deep on this board, and Thursday's participation page ordered them: Darrell Luter Jr., No. 28, 42 snaps; Jones 29; Jakob Robinson, No. 43, 27; Ephesians Prysock, No. 35, 21; Deommodore Lenoir, No. 2, 17; Renardo Green, No. 0, nine; Upton Stout, No. 20, eight. Siran Neal, No. 33, played ten special-teams snaps and no defensive ones. Eli Apple, No. 30, played seven on special teams. Hobbs played none of anything.

Green left in the first quarter with a hamstring after chasing Brenen Thompson on a deep ball. Shanahan said the club would get further imaging on Friday to see whether he pulled it. Green is graded 8 here and inside the 53, and nothing about that changes until the imaging is reported.

Luter is the number this board cannot square. He led all San Francisco cornerbacks in defensive snaps on Thursday and led them in the opener too, at 45, and he is graded 3 and outside the projection. Snap volume in August is evaluation rather than endorsement, and no published account has graded his coverage either way, so the 3 holds and the gap between it and his usage goes on the record.

What would flip this back#

The projection keeps six cornerbacks. Jones taking the sixth seat means Hobbs losing it, and one week of practice reverses that. If Hobbs works before the finale at Las Vegas on Thursday, the club has a corner it can evaluate with three days left, and this board will put him back inside. If Green's imaging comes back badly, San Francisco may simply keep seven and the whole comparison dissolves.

Neither of those has happened yet. On the evidence that exists nine days out, one of these cornerbacks has played 37 preseason snaps and broken up two passes, and the other has played none.

Sources: official NFL game books, San Francisco at Los Angeles Chargers, August 20, 2026, and Tennessee at San Francisco, August 13, 2026, participation and defensive statistics pages and play-by-play; 49ers.com roster page and 2026 schedule; 49ers.com Day 9 training camp recap, August 8, 2026; Kyle Posey, Niners Nation, August 21, 2026, for Shanahan's post-game availability; Andrew Pasquini, Niners Nation, August 21, 2026; Jason Aponte, Niners Nation, August 21, 2026, for the snap counts and PFF grades; David Bonilla, 49ers Webzone, August 14, 2026, and Michael David Smith, Pro Football Talk, August 14, 2026, for the Hobbs timeline; Over The Cap contract and participation pages for Hobbs and Jones; Packers.com and the Green Bay Press-Gazette, March 2026, and Spotrac, for the terms of Hobbs's Green Bay contract, its release treatment and his 2025 usage; NFL.com for the August 30 cutdown deadline.