Which Non-Rostered Giants Have the Best Shot at MLB Playing Time?

Non-roster invitees are never going to be the highlight of spring training. With freshly signed free agents and rising prospects getting their first tastes with their new squads, these guys will never steal the headlines.

For the San Francisco Giants, every starting position and rotation spot is virtually set for Opening Day. The bench could offer some intriguing positional battles, but, for the most part, it’s full of familiar names.

There is one group on the roster that is full of unknowns, however. The Giants bullpen is undoubtedly the weakest group on the roster and where some of these non-roster invitees come into play.

San Francisco has never been the club to shell out the money to pay a big-time reliever. It’s been clear that they’d prefer to build a group with non-rostered veterans and inexperienced minor leaguers with everything to prove.

Let’s take a look at which names currently off the Giants roster have the best shot at contributing at some point in 2026.

Will Bednar — Relief Pitcher

Bednar was the Giants first-round draft pick from a few years ago and looked like a complete bust early on. He struggled to stay on the mound and simply didn’t look like the same guy he was at Mississippi State, where he won a National Championship.

However, things turned around for the 25-year-old in 2025. Transitioning into a full-time reliever helped him put together an absurd 34% strikeout rate and 3.18 FIP, both career highs for an entire season.

The fastball saw a significant uptick in velocity and the arsenal developed as a whole for the finally healthy Bednar. While there’s still some concern in the command and walk departments, the stuff is undeniable.

Many thought San Francisco would opt to protect him from the Rule 5 draft but they eventually decided not to. Fortunately for them, he landed right back with the organization. There’s no question that the brother of MLB All-Star David Bednar could pitch his way into the Opening Day bullpen with a strong spring.

Trent Harris — Relief Pitcher

Harris has been one of the higher-touted reliever arms in the Giants system for a couple of seasons now. In 94 professional games, Harris hasn’t started a single one. It’s worked out for the right-hander as he appeared on several lists of the top prospects in the Giants organization.

While he’s not overpowering by any means, he has a four-pitch arsenal with two others that he can mix in. He also keeps the ball on the ground at a good rate, which is something the current Giants front office seems to like in pitchers. He excelled in Double-A Richmond last year with a 1.69 ERA in 16 innings.

Harris did see some regression after being promoted to Triple-A, which is understandable considering the hitter-friendly nature of the Pacific Coast League. Here’s what Just Baseball founder and BBWAA member Aram Leighton had to say about the 27-year-old.

“Harris can really spin the ball, boasting a pair of impressive breaking balls, with the mid-80s sweeper standing out as a comfortably plus pitch. The downer curveball has plenty of depth as well, helping him keep left-handed hitters in check. “

– Aram Leighton, Just Baseball

Similar to Bednar, if Harris has a strong spring and showcases he can compete against big-league-caliber hitters, he could see action in San Francisco very early in 2026.

Eric Haase — Catcher

It’s been a difficult few years for the 33-year-old backstop. Haase spent a good chunk of time in the minor leagues with the Brewers and only played 30 big-league games in both 2024 and 2025.

However, there’s still a decent chance he cracks the Opening Day roster. While Daniel Susac is likely the favorite the be the backup due to him being selected in this winter’s Rule 5, Haase has done things earlier in his career that the Giants have struggled with.

In his career, he has been a significantly better hitter against left-handed pitching as compared to righties. The Giants, on the other hand, have struggled mightily against southpaws in recent memory.

Not to mention, switch-hitting starting catcher Patrick Bailey is much more comfortable hitting from the left side of the plate. That alone gives Haase an advantage over the other non-roster catchers in camp.

Haase was also one of the better hitting catchers in baseball from 2021-2022 with the Tigers, before declining rather rapidly. During that span, he was seventh among catchers with at least 600 plate appearances with 36 home runs and ninth in wRC+ (105).

If he looks anything like the hitter we saw in Detroit, San Francisco will have no choice but to bring him in as Bailey’s backup.

Bo Davidson — Outfielder

Davidson is currently the fifth-ranked prospect in the Giants system and is undoubtedly the best outfield prospect in the organization. It’s been an interesting ride for the undrafted free agent signee, but he has completely broken out across the last two seasons.

In 2024, Davidson slashed .327/.437/.605 with an absurd 170 wRC+ and 1.042 OPS. While there was some slight regression in 2025 as he continued to climb levels, he still launched 18 home runs and held a 137 wRC+.

Davidson is highly unlikely to crack the Opening Day roster with the starting outfield set and Drew Gilbert being the projected fourth outfielder. However, if he continues to mash to open the year, there’s no reason he can’t fight for big-league at-bats as early as this summer.

Parks Harber — Infield/Outfield

Harber is one of the fresher faces to the Giants’ farm system, as he was brought to San Francisco in the Camilo Doval deal at the deadline. That didn’t stop him from immediately making a name for himself at the end of last year and in the Arizona Fall League.

All Harber has done since turning pro is hit. Since signing as an undrafted free agent with New York in 2024, he’s had a wRC+ over 140 at every professional stop.

In 108 plate appearances at High-A after the deadline, he provided nearly double the amount of offensive production as the average hitter with a 196 wRC+. He also launched seven home runs during that span, which was more than he had in his entire pro career up to that point.

He followed that up by having the 4th best OPS (1.196) and hitting the most doubles (9) in the Arizona Fall League. Formerly being developed as a corner infielder, he’ll likely have to transition into a corner outfield spot as both corners are locked down at the big-league level with names like Matt Chapman, Rafael Devers, and top prospect Bryce Eldridge.

Similar to Davidson, Harber won’t be an option on Opening Day. However, with a strong spring, he could put his name in the mix for when the Giants inevitably need help during the dog days of summer and the final stretch of September.

Other Names to Follow

• Nate Furman – INF
• Gregory Santos – RP
• Diego Cartaya – C
• Michael Fulmer – RP