Breaking down the new prospects from the Giants' Deadline haul

ARLINGTON -- The Giants’ farm system got an infusion of young talent after the organization pulled off five trades ahead of Monday’s Trade Deadline.

Here’s a deeper look at the six prospects that were acquired as part of the returns for Luis Arraez, Caleb Kilian, Robbie Ray, Tyler Mahle, Heliot Ramos and Erik Miller:

Ramon Marquez, RHP, High-A Eugene (Giants’ No. 7 prospect, per MLB Pipeline)

Acquired from the Phillies in exchange for Arraez and Kilian

Pipeline scouting report: Signed for just $10,000 out of Mexico in January 2025, Marquez reached Single-A at the end of his pro debut and posted a 41.9 percent strikeout rate between two Class-A levels in the first four months of the 2026 season. Marquez owns one of the best changeups in the Minors, a low-80s weapon with so much fade that hitters rarely make contact against it, even when it stays in the strike zone. He sets his signature pitch up with a solid 94-96 mph fastball that tops out at 98 with plenty of armside run and decent carry. His third offering is an upper-80s cutter that he locates well.

Organizational fit: The 20-year-old Marquez is viewed as the prize of the Giants’ Deadline haul, giving the club another highly touted pitching prospect to pair with right-hander Jackson Flora, the No. 4 overall pick of the 2026 MLB Draft. The two budding aces should give the Giants the type of frontline arms they’ve been sorely missing from their farm system in recent years.

ETA: 2028

Henry Lalane, LHP, High-A Eugene (Giants’ No. 9 prospect)

Acquired from the Yankees in exchange for Ramos

Pipeline scouting report: Lalane's fastball sat at 91-92 mph in 2024-25, but it now parks at 94 and has topped out at 98 this season, with improved armside run and carry. He does a nice job killing spin on a low-80s changeup with fade and depth, and he's landing it in the strike zone more often. His slider has improved from a mid-70s slurve to a 78-82 mph sweeper.

Organizational fit: The Giants weren’t going to move the 26-year-old Ramos unless they received a return package that they felt matched his value. They were ultimately willing to pull the trigger thanks in large part to the 6-foot-7 Lalane, another big arm who offers serious upside on the mound.

ETA: 2028

Miguel Mendez, RHP, High-A Eugene (Giants’ No. 14 prospect)

Acquired from the Padres in exchange for Ray

Pipeline scouting report: Increased fastball velocity has fueled Mendez's climb, with his four-seamer sitting at 95-99 mph and touching 101 with explosive carry and significant armside run. His tight mid-80s slider is a similarly dynamite weapon that played off that heater, often forcing righties to lunge late. He can land his fading mid-80s changeup in the zone, but it doesn't miss a lot of bats.

Organizational fit: The 24-year-old Mendez has spent most of the 2026 campaign with Double-A San Antonio, where he recorded a 4.93 ERA with 38 strikeouts over 34 2/3 innings in 11 starts. He’s currently working his way back from an injury and will report to the Giants’ Minor League Complex in Arizona before the organization determines his next steps.

ETA: 2027

Joniel Hernandez, SS, Dominican Summer League (Giants’ No. 21 prospect)

Acquired from the Padres in exchange for Ray

Pipeline scouting report: The right-handed slugger has a whippy swing that comes with a lot of bat speed and easy power on which to dream. At 6-foot-1 and 180 pounds, Hernandez has plenty of room to add extra muscle, too, and there’s a shot for him to get to plus power at full maturity. The looseness and length in his stroke comes with some hit-tool questions because he can swing around breaking balls and offspeed pitches, though he fared well in the DSL.

Organizational fit: The Giants’ farm system is already loaded with young shortstops, but it never hurts to take a flier on another 17-year-old who is teeming with athleticism and can play almost anywhere on the diamond.

ETA: 2031

Kaeden Kent, SS, High-A Eugene (Giants’ No. 22 prospect)

Acquired from the Yankees in exchange for Ramos

Pipeline scouting report: The son of Hall of Famer Jeff Kent, Kaeden’s best attributes are his high baseball IQ, quality left-handed swing and penchant for making line-drive contact. He could enhance his offensive profile if he drove more balls in the air and tapped into more of his 15-20 homer potential.

Organizational fit: The 22-year-old Kent has been on the Minor League IL since July 6, but he should be an option to play shortstop, second base or third base once he’s healthy. The Giants have been fans of his swing for a while and were interested in selecting him in the 2025 MLB Draft, but he ended up being snatched up by the Yankees in the third round out of Texas A&M.

ETA: 2028

Marty Gair, RHP, High-A Eugene

Acquired from the Phillies in exchange for Arraez and Kilian

Gair, 23, was a 13th-round Draft pick of the Phillies in 2023 and recorded a 4.50 ERA over 30 relief appearances between Single-A Clearwater and High-A Jersey Shore in 2026.