RB Isaac Guerendo In Uphill Battle To Make 49ers’ Roster; Latest On Team’s LG Situation

The 49ers have an established track record for mid-round running back investments during the Kyle Shanahan-John Lynch era. Unfortunately for the team, the moves have a high bust rate.

San Francisco drafted Joe Williams in the 2017 fourth round, trading up for the Utah back. Williams did not play an NFL snap. The team tried again by drafting Trey Sermon in the 2021 third round. Sixth-rounder Elijah Mitchell outplayed Sermon, who saw minimal San Francisco action before being waived in 2022. The team misfired once again in Round 3, with its Tyrion Davis-Price pick (2022) yielding little before a 2023 separation.

The 2024 draft brought another swing, with Isaac Guerendo joining the team in Round 4. Shortly before Guerendo’s second season, however, the 49ers traded for Brian Robinson to serve as Christian McCaffrey‘s backup. Robinson moved on in free agency (to the Falcons) in March, but the 49ers went back to the draft well again by choosing Indiana’s Kaelon Black in Round 3 despite the Indiana product not being invited to the Combine.

Black joins 2025 fifth-rounder Jordan James as McCaffrey backup options alongside Guerendo, but the third-year player may be on the outside looking in. Guerendo is now a long shot to make San Francisco’s 53-man roster this summer, The Athletic’s Vic Tafur writes. The 49ers are expected to feature an RB2 competition between James and Black, Tafur adds.

Guerendo, who clocked a 4.33-second 40-yard dash at the 2024 Combine, averaged 5.0 yards per carry as a rookie (84/420) and scored four touchdowns. McCaffrey missed most of that season but returned to his full workload in 2025, with Robinson serving as the clear backup. Guerendo, who played alongside Mitchell in 2024, went from 227 offensive snaps as a rookie to zero last season. He could find himself elsewhere via waivers or perhaps in a low-level trade, though the 49ers could perhaps save a practice squad spot come August.

While McCaffrey’s backup — a rather important position considering the All-Pro’s injury history — has yet to be decided, the team will be looking for a Week 1 left guard starter as well. Spencer Burford and Ben Bartch defected in free agency (to the Raiders and Lions, respectively), leaving a hole opposite Dominick Puni. The team signed Robert Jones and will put him in a competition with second-year blocker Connor Colby and rookie fourth-rounder Carver Willis, Tafur adds.

Jones, who missed all of last season with a broken bone in his neck, comes over from the Cowboys but last made contributions with the Dolphins. The four-year Miami blocker, 27, started 30 games for the Dolphins — including 17 in 2024. Jones only commanded a one-year, $3.75MM Dallas deal and signed for $1.75MM ($1.64MM guaranteed) with the 49ers.

The 49ers initially turned to Colby after Bartch’s Week 2 injury last season but ended up going with Burford as a nine-game starter. Burford joined the Raiders on a one-year, $3.26MM contract. Willis played left tackle with Washington as a senior and was Kansas State’s starting right tackle in 2024. The 49ers, who signed Vederian Lowe as a swing tackle this offseason, are moving Willis to guard.

Although Jones has by far the most experience here, Colby — an Iowa product drafted in last year’s seventh round — will be given “every opportunity” to beat him out, per Tafur. Pro Football Focus ranked Colby 66th among guards as a rookie, but the 49ers look to remain bullish on his chances. Two years remain on Puni’s rookie deal, keeping the team’s RG situation stable for the foreseeable future.

NFL Draft Rumors: Cardinals, RBs, Downs, Woods, Terrell

As free agency slows, the general focus of the NFL is starting to shift to the 2026 NFL Draft. For one team, though, the focus appears to be the 2027 NFL Draft, per Jason La Canfora of SportsBoom. As several teams work to secure optimal situations in their quarterbacks rooms, the Cardinals appear to be working around it.

After cutting veteran quarterback Kyler Murray, Arizona seems content to move forward in 2026 with journeyman backup Jacoby Brissett, who went 1-11 as the Cardinals’ starter last year. They supplemented the room with another frequent flier with starting experience in Gardner Minshew. Neither passer is viewed as the team’s future at the position but more as bridge options until that future comes along. The prevailing opinion throughout league circles appears to be that Arizona is tanking the 2026 season in hopes of setting themselves up well for a draft projected to be a bit more rich in quarterback prospects than this year’s draft.

With that in mind, the remainder of their offseason will be focused on building an offense around their future quarterback, starting with the construction of a reliable wall in front of him. For this reason, there’s belief the Cardinals will be targeting an offensive lineman with their No. 3 overall pick, and the popular opinion is that Hurricanes top tackle prospect Francis Mauigoa could be that target. The three-year starter out of Miami (FL) has a strong chance of being available as Indiana quarterback Fernando Mendoza is expected to go No. 1 to Las Vegas, and the Jets are expected to add to their defense with the second overall pick.

Here are a few other draft rumors from around the NFL:

  • While only one or two running backs project to be top prospects in the draft, there are plenty of options for teams looking to build depth or add some fresher legs to their room. With Alvin Kamara‘s future in New Orleans in doubt, Tony Pauline of EssentiallySports reports that the Saints have shown interest in Arkansas running back Mike Washington. A Buffalo- and New Mexico State-transfer, Washington rushed for 1,070 yards and eight touchdowns for the Razorbacks last year.
  • When it was thought that Aaron Jones would be departing from Minnesota, some at ESPN believed the team would go to the draft, as opposed to the free agent market, to fill out the room. With Jones returning on a re-worked contract that expires after this year, running back may still be a focus for the Vikings in this year’s draft.
  • Despite re-signing J.K. Dobbins and restricted free agent Jaleel McLaughlin and having spent a second-round pick on RJ Harvey last year, the Broncos are doing research on the draft’s offerings at the position. According to Aaron Wilson of KPRC 2, the team hosted Indiana running back Kaelon Black for a top 30 visit. The national champion rushed for 1,040 yards and 10 touchdowns and has visited the Jets with visits with the Panthers, Bengals, and Raiders set in the future.
  • According to ESPN’s Matt Miller, some post-combine conversations with scouts revealed a dramatic range of opinions for Clemson defensive tackle Peter Woods. The former five-star recruit took over a full-time starting position in his sophomore season and grabbed the attention of scouts everywhere with three sacks and 8.5 tackles for loss in 11 games while proving to be an elite run-stopper. His production declined in his junior year, which Pro Football Focus (subscription required) still saw as good but graded as his worst campaign in Clemson. As a result, some scouts still see the potential and view him as a top 15 prospect, while others have him “solidly” as a Day 2 prospect.
  • The Giants have had an incredibly busy (and in many views productive) offseason thus far, so many are eager to see what approach they will take with their fifth overall pick in the draft. According to La Canfora, despite their success rebuilding so far, New York still has a glaring hole in the secondary. New head coach John Harbaugh‘s former organization invested heavily in the safety position over the course of his tenure with the team, and it’s believed that that mentality has followed him to New York. Ohio State’s Caleb Downs has been tied to the Giants before, and La Canfora doubles down on the opinion that he could be the selection at No. 5 overall.
  • Clemson cornerback Avieon Terrell, the younger brother of Falcons first-round cornerback and one-time second-team All-Pro AJ Terrell, is widely viewed as a top five prospect at his position. After suffering a minor hamstring injury at the combine, though, the younger Terrell will not be participating in the Tigers’ pro day, according to Jordan Reid of ESPN. Instead, he has scheduled a separate workout for scouts that will take place March 30.