Eight Texas Rangers prospects—Sebastián Walcott, José Corniell, Winston Santos, Malcolm Moore, Emiliano Teodo, Dylan Dreiling, Kolton Curtis and Joey Danielson—will compete in the Arizona Fall League for the Surprise Saguaros, alongside players from Royals, Guardians, Brewers and Phillies. AFL runs Oct 6–Nov 15 across six Cactus League venues. The league emphasizes extra development time, with Corniell coming back from Tommy John and Santos sidelined by a back stress reaction.

Rangers staff Matt Lawson and Dakota Fowee will join the Saguaros’ staff to guide the group. This is a pivotal stage for the Rangers’ top pipeline, offering a platform to advance the eight top-23 prospects and build on a season that included injury comebacks and continued refinement of tools and approach as they push toward major-league readiness.

Corniell, the Rangers’ top pitching prospect, has been promoted to Triple-A Round Rock following a long recovery from elbow ligament repair. After a 2023 breakout (2.92 ERA, 119 K in 101 2/3 IP) he returned in July 2024, logged four rehab starts in the Arizona Complex League, then dominated six starts at Frisco (0.90 ERA, 20 K, 1 BB in 20 innings, .138 opponents’ average). The move to Round Rock signals a steady climb back toward the big leagues and a tantalizing fantasy arm despite injury risk.

With MLB Pipeline listing him as Texas’s top pitching prospect, Corniell’s path back to Texas could accelerate if he maintains velocity and control. Fantasy managers should track his AAA results and any signs of durability as the Rangers balance his workload with his long-term health plan.

Caden Scarborough surged into the Rangers’ orbit this week, earning the Class A Carolina League Pitcher of the Week after five no-hit innings. The move up to the South Atlantic League sets the stage for his next start against Greenville (Pittsburgh org), a true test as he climbs in pro ball.

In his recent stretch, Scarborough has been dominant: five no-hit frames last week, one baserunner on a walk, and a 37-inning run that features 43 strikeouts and just six walks. His season numbers support the hype: a sub-.200 average against and a stingy OPS, with a robust 1.21 ERA over his last nine appearances.

MLB Pipeline slots him No. 8 in Texas’ system, just behind Corniell, Santos, Russell, Rosario, and Davalillo, highlighting Scarborough’s ascent as one of the more intriguing arms in the organization. His delivery is clean, with elite extension, and he’s dabbling with a sinking mid-80s changeup as he learns to mix pitches more effectively.

For fantasy managers, Scarborough is a watch-list candidate whose path to Texas isn’t guaranteed this season, but the exposure to higher levels could come quickly if he maintains his control and strikeout upside. Treat him as a longer-term dynasty hold with cautious optimism for redraft value late this season if he keeps climbing.

Winston Santos is nearing a return for the Texas Rangers after a back stress reaction kept him sidelined since April. A live bullpen session in Surprise set him up for an Arizona Complex League appearance this Friday, with a Double-A Frisco assignment looming once cleared. Santos is part of a trio of Rangers right-handed prospects—Jose Corniell and Caden Scarborough—ranked No. 3 and No. 8 by MLB Pipeline, respectively, illustrating a deep, talented depth chart in the Texas system. Santos, 23, previously posted a 3.18 ERA across two Frisco starts this season before the injury, and logged 3.67 ERA in 110 1/3 innings between High-A and Double-A last year. He even flashed in Spring Breakout action versus a Giants prospect group, throwing three scoreless frames. The club signed him out of the Dominican Republic for a modest $10,000 six years ago, underscoring a payoff prospecting often yields when health returns.

Corniell and Scarborough form the other two arms in the Rangers’ top prospects cadre, each carrying a high ceiling in a system known for its pitching depth. The mention of a pending ACL-related hurdle for Santos’ full return underscores the caution in projecting a rapid, gate-crashing arrival, but the pathway is clear: efficient rehab, a measured ramp, and continued performance in the minors could push both Corniell and Scarborough into real MLB consideration as the season progresses. The Giants’ spring showcase of top prospects provided a benchmark backdrop for this Texas group, highlighting the level of competition Santos and his fellow Rays could soon face on the big stage.

Jose Corniell’s comeback from Tommy John signals a continued flow of high-end depth for the Rangers. After returning in July, the right-hander has four Frisco starts with no earned runs allowed, illustrating the ceiling Texas has built behind the big league rotation. Acquired from Seattle in a Montero swap five years ago, Corniell sits among a cadre of promising arms, spearheaded by a group that includes Winston Santos, AJ Russell, Alejandro Rosario, David Davalillo and Caden Scarborough. Corniell’s early success adds to Texas’ patient, data-driven rebuild and their belief in a steady pipeline of impact potential pitchers.

Sebastián Walcott remains the club’s top overall prospect, with Gavin Fien close behind as the first-round rookie enters the professional ranks. Malcolm Moore slid from No. 2 to No. 11 after finger injury and rust delayed his return; the Rangers believe he can still reclaim his scout-grade upside. Davalillo and Scarborough have been breakout arms this season; Scarborough’s frame and velocity stand out, while Davalillo has dominated at the lower rungs and earned a quick move toward higher levels. Rosario is contending with elbow surgery in the mix, underscoring the volatility and potential in Texas’ farm system.

Texas’ prospect depth isn’t just about raw stuff; Scarborough’s upper-90s heater with plus extension mirrors the body type of Jacob deGrom, and the scouting profile for Walcott and Fien emphasizes bat-to-ball and on-base skills that could translate to big league opportunities when the timing aligns. The piece also notes Moore’s rust after a finger fracture and two-month IL stint, painting a nuanced view of a farm system loaded with upside but mixed with injury risk and development timelines. Overall, the Rangers’ pipeline looks robust, with Corniell anchoring a hopeful wave of young pitchers and Walcott, Fien and Fien’s cohort poised to push for MLB involvement in the near term.