The Giants didn’t get an instant jolt from the February 2024 deal that sent Ross Stribling to the Athletics for Jonah Cox. They may be getting something far more valuable now.
MLB Pipeline has tabbed Cox as San Francisco’s breakout prospect for 2026, and the expectation is that he could become a real piece of the Giants’ outfield rotation in 2027. That kind of payoff takes patience, but this trade is starting to look like one the organization can feel good about.
Cox reached the majors on May 31 with almost no Triple-A runway behind him. He had only 11 games at that level, and when the Giants brought him up, he was at Double Richmond. San Francisco needed an outfielder in a hurry, and Cox stepped into that opening.
The results have been strong enough to keep him in the conversation. Across 53 games with the Giants this season, he has hit .294/.333/.445 with four home runs and 13 RBI.
The bat still has some rough edges - in 119 at-bats, he has struck out 48 times and walked only seven - but the speed has played right away. He has stolen 13 bases for San Francisco.
That speed is the calling card. Cox, a sixth-round pick out of Oral Roberts, was a base-stealing machine in the minors.
He swiped 58 bags in both 2024 and 2025, and even in just 55 minor league games this season he piled up 34 steals. The Giants don’t have another weapon like that on the roster, which is part of what makes him so intriguing.
Underneath the .290/.372/.431 career line is the profile of a hitter the Giants believe can keep growing.
The opportunity is there, too. San Francisco is already missing two opening day starting outfielders.
Harrison Bader has been sidelined for months by plantar fasciitis, then dealt with another foot injury in a scooter accident during his rehab. The Giants also traded Heliot Ramos to the New York Yankees at the deadline.
That has opened the door for Cox to keep building his case.
Right now, the Giants are carrying six outfielders. That number should shrink to five on opening day in 2027, and Cox has put himself in position to claim one of those spots if his 2026 breakout keeps rolling.
In Other News...
Giants May Have Quietly Solved A Daniel Susac Roster Problem
Daniel Susacs lost 2023 season still carried an important roster consequence for the Giants, even after the left knee patella fracture ended his year. Because he spent enough time on the active roster as a Rule 5 draft pick, San Francisco cleared the service-time hurdle needed to ease the usual Rule 5 restrictions, a small bookkeeping detail with a long shelf life.
Starting in 2027, the Giants can treat Susac like any other 40-man player instead of worrying about the special Rule 5 clock attached to him. In practical terms, that gives the club far more flexibility and control over his future, with team control stretching through at least 2031, which is exactly the kind of quiet roster win front offices value even when it barely registers at the time. [Read more 🡒]
Giants Prospect Jonah Cox Is Forcing A Real Roster Debate
Jonah Cox has spent this season turning raw athleticism into a real argument for the Giants future. The rookie outfielder has already led the club in stolen bases despite limited games played, and his speed has not been the only thing catching attention. His defensive range and ability to move around the outfield have given San Francisco another layer of flexibility, while his aggressive baserunning has stood out enough that coaches have taken notice.
For a Giants roster still sorting out how best to build for next spring, Cox is no longer just a promising name in the system. He is making a case for a spot on the Opening Day roster, and it is a case built on more than one tool. Speed can be fleeting in prospect talk, but when it comes with real impact on the bases and in the field, it starts to create a tougher decision than the club probably expected. [Read more 🡒]
Giants Still Have One Outfield Problem To Solve This Winter
The Giants outfield remains one of the more unsettled parts of the roster heading into the winter, even after a season that showed some signs of improvement. San Francisco was still near the bottom of several defensive metrics in 2025, a reminder that the group has not fully recovered from last years issues, and the clubs decision to bring in Harrison Bader last offseason did not deliver the kind of stabilizing presence it was hoping for. He appeared in only 30 games, leaving the Giants with less certainty than they expected in a spot that was supposed to be strengthened.
There is at least a brighter note in center field, where contributions from Drew Gilbert and Jonah Cox helped the team move in a better direction. The problem is that the corners remain a different story, and that is where the Giants still have work to do. With possible positional shifts on the table and more attempts to upgrade likely ahead, the front office is still staring at one outfield issue that has not gone away. [Read more 🡒]