The 49ers have reached their 90-man roster limit.

San Francisco on Sunday confirmed the signings of six undrafted free agents following the 2025 NFL Draft.

The following free agents have agreed contracts with the team:

LB Stone Blanton, Mississippi State
RB Corey Kiner, Cincinnati
OL Drew Moss, Colorado State
WR Isaiah Neyor, Nebraska
CB Jakob Robinson, BYU
DL Sebastian Valdez, Washington

The headliner is probably former Cincinnati back Kiner, who gives the 49ers another back who excels in creating yards after contact. Kiner racked up 1,000 yards in each of his final two seasons with the Bearcats, having transferred from LSU after the 2021 season.

Kiner had 1,153 yards rushing and four touchdowns in 2024, averaging 96.1 yards per game. He averaged 4.12 yards after contact per attempt, per PFF, putting him 17th in the FBS among backs with at least 100 rushes.

But Nebraska wideout Neyor is arguably just as intriguing because of his athletic traits.

Neyor had 901 yards from scrimmage and 13 touchdowns at Wyoming in 2022. He transferred to Texas off the back of that season but saw his brief time with the Longhorns ruined by a torn ACL suffered in preseason training camp.

He transferred again to Nebraska and scored five touchdowns for the Cornhuskers before crushing his pre-draft workout. Neyor posted a Relative Athletic Score of 9.90, putting him 40th of 3,816 receivers from 1987 to 2025.

A transfer from South Carolina, Blanton was Mississippi State’s lone draft prospect in 2025 following a miserable season for the Bulldogs. He had 125 tackles in 2024, registering four tackles for a loss, three pass breakups and two forced fumbles. He joins a very crowded linebacker room that swelled after the 49ers selected Nick Martin in the third round.

Robinson was primarily a slot corner for BYU but has the versatility to play inside and out. After transferring from Utah State, he delivered excellent on-ball production for the Cougars, racking up 21 passes defensed and 11 interceptions in four seasons.

Valdez transferred to Washington after three seasons at Montana State. He had two sacks for the Huskies in 2024, and projects as the archetypal three-technique. Though he may complement draft picks Alfred Collins and CJ West well, Valdez likely faces an uphill battle to make the roster.

@illmalec informed me 49ers UDFA Drew Moss is a better OG than Colby and he isn’t lying. This kid might start at guard this season. Certainly think he has a good chance. How did he go undrafted??

Right guard 68 pic.twitter.com/OlSCPZtTeU

— Rich (@richjmadrid) April 27, 2025

Moss was a four-year starter at Colorado State. He played three seasons at right tackle before switching to right guard in 2024.

He allowed just one sack in 2024, giving up seven pressures in total, per PFF. Additionally, Moss also had the second-highest PFF run block grade in the FBS last season. With his positional versatility, there could be path for Moss to contend for at least a practice squad spot given the 49ers’ unconvincing depth on the offensive side of the trenches.