Red Sox prospect Johanfran Garcia hit a walkoff RBI single off the left field wall to lift High-A Greenville to a 2-1 win over Rome in 10 innings on Sunday.

Garcia is the younger brother of Jhostynxon “The Password” Garcia, the No. 2 position prospect in Boston’s system.

The 20-year-old catcher is back this season after undergoing season-ending surgery last May to repair torn ligaments in his knee. He began the season at extended spring training and on a rehab assignment in the FCL before Boston assigned him to Greenville on June 10.

He’s batting .242 with a .336 on-base percentage, .392 slugging percentage, .728 OPS, five home runs, three doubles, 18 RBIs, 18 runs, 15 walks and 45 strikeouts in 33 games (140 plate appearances) for the Drive.

Baseball America ranked Garcia Boston’s No. 14 prospect entering 2024. Brother Jhostynxon, who is with Triple-A Worcester, was unranked entering last year, then put together a breakout season.

Other Red Sox minor league notes from Sunday

~ Vaughn Grissom was scratched from Triple-A Worcester’s lineup due to a sore right foot.

~ Red Sox top pitching prospect Payton Tolle made his Triple-A debut. He allowed six runs in the first inning, including a grand slam. But he then held Buffalo scoreless for the next five innings. He recorded 14 swings and misses, including 10 with his fastball that averaged 93.4 mph and topped out at 96 mph.

~ Luis Perales, a top pitching prospect, has begun throwing bullpens as he works his way back from Tommy John surgery.

~ Kristian Campbell stayed hot, going 2-for-3 with a 363-foot two-run homer in Worcester’s loss.

~ Hayden Mullins, a 24-year-old lefty, allowed just one run, three hits and two walks while striking out five in 5 ⅓ innings in Double-A Portland’s 3-1 loss to Harrisburg. The 2022 12th-round pick out of Auburn has a 2.28 ERA and 1.08 WHIP in 13 starts for Portland. He has held opponents to a .156 batting average. He also has 67 strikeouts and 32 walks in 59 ⅓ innings.

~ Justin Gonzales, an 18-year-old outfielder/first baseman, went 2-for-5 in Low-A Salem’s 8-7 win over Kannapolis. Gonzales — who Baseball America ranks Boston’s No.16 prospect — is slashing .288/.375/.401/.776 with three homers, two triples and 17 doubles in 70 games (307 plate appearances) for Salem.

~ Maximus Martin, a 2025 Red Sox 10th-round draft pick out of Kansas State, went 4-for-4 with four singles, four runs and one walk in Salem’s win. He’s a 21-year-old middle infielder.