MLB's top prospect Konnor Griffin set to make major league debut at just 19 years old

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Major League Baseball's top prospect has arrived.

The Pittsburgh Pirates announced on Thursday that shortstop Konnor Griffin will make his major league debut in the team’s home opener against the Baltimore Orioles on Friday.

Griffin, who turns 20 on April 24, was selected with the No. 9 overall pick in the 2024 MLB Amateur Draft from Jackson Preparatory School in Flowood, Mississippi.

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Pittsburgh Pirates shortstop Konnor Griffin celebrates after hitting a two-run home run against the St. Louis Cardinals during the first inning at Roger Dean Chevrolet Stadium in Jupiter, Florida, on March 1, 2026. (Sam Navarro/Imagn Images)

Not only did the Pirates call Griffin up, they are finalizing a nine-year, $140 million contract with the 19-year-old, according to ESPN. 

Griffin began his minor league career in 2025, spending 50 games in Low-A (Bradenton), 51 games in High-A (Greensboro), and ending with 21 games in Double-A (Altoona). Across 122 minor league games, Griffin hit .333 with 21 home runs and 94 RBI and 65 stolen bases.

The Mississippi native impressed in spring training this year, hitting four home runs in 16 games.

Despite his impressive spring training showing, the Pirates sent Griffin down to Triple-A to begin the season. However, Griffin continued his hot hitting with seven hits in 16 at-bats and three stolen bases, prompting the team to call him up.

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Pittsburgh Pirates shortstop Konnor Griffin returns to the dugout during the second inning against the St. Louis Cardinals at Roger Dean