Trey Mancini

The homerun made Mancini the fourth Orioles' player to hit a home run for their first Major League hit after Larry Haney (1966), Nick Markakis (2006) and Jonathan Schoop (2013).

Mancini started again two nights later and hit his second career home run, a three-run homer off David Price.

He became the 20th player in major league history to hit a home run in his first two starts.

He became the third player in major league history to homer in their first three starts, after he hit a solo home run against the Arizona Diamondbacks on September 24.

He also joined Boog Powell ('66) and Eddie Murray ('80) as the only three Orioles to homer in the 9th inning and in extras in the same game.

Mancini finished the season batting .293/.338/.488 with a .826 OPS, 120 OPS+, 24 home runs and 78 RBI in 147 games during his rookie campaign.

He also became the second Oriole ever to hit a game-tying home run in the 9th inning or later and then hit a walk-off homer in the same game (Mike Young on May 28, 1987).

Joseph Anthony "Trey" Mancini III (born March 18, 1992) is an American professional baseball first baseman, outfielder, and designated hitter in the Miami Marlins organization.

He has previously played in Major League Baseball (MLB) for the Baltimore Orioles, Houston Astros, and Chicago Cubs.

His nickname "Boomer", originally "Boom Boom" after Ray Mancini, morphed into its current form when he enrolled at the University of Notre Dame.

He played collegiate summer baseball for the Holyoke Blue Sox of the New England Collegiate Baseball League in 2011, and the Harwich Mariners of the Cape Cod Baseball League in 2012.

The Orioles selected Mancini in the eighth round of the 2013 MLB draft.

In 2013, his junior year at Notre Dame, he slashed .389/.431/.603 with seven home runs and 54 runs batted in (RBIs) in 57 games.

The Orioles selected Mancini in the eighth round of the 2013 MLB draft.

He signed, and made his professional debut with the Aberdeen IronBirds of the Class A-Short Season New York–Penn League that same year.

He spent the whole season with Aberdeen, batting .328 with three home runs and 35 RBIs in 68 games.

He began the 2014 season with the Delmarva Shorebirds of the Class A South Atlantic League and received a midseason promotion to the Frederick Keys of the Class A-Advanced Carolina League.

In 137 games between the two teams, he compiled a .284 batting average with ten home runs and 83 RBIs.

He began the 2015 season with Frederick, and was promoted during the season to the Bowie Baysox of the Class AA Eastern League.

In 136 games, Mancini slashed .341/.375/.563 with 21 home runs, 89 RBIs, and 43 doubles.

He made his MLB debut in 2016 with the Orioles.

After spending some time in Baltimore during spring training, Mancini returned to Bowie to start the 2016 season.

He was blocked at Triple A by Joey Terdoslavich, but was promoted to the Triple-A Norfolk Tides in April 2016 as Terdoslavich struggled.

He spent the remainder of the season at Norfolk, batting .280 with 13 home runs and 54 RBIs in 125 games.

The Orioles promoted Mancini to the major leagues on September 18, 2016, during September call-ups.

On September 20, in his major league debut as the designated hitter against the Boston Red Sox, he hit a home run against Eduardo Rodríguez in his second at bat.

His parents were in attendance to watch this his first MLB homerun.

Mancini made the Orioles' 2017 Opening Day roster after transitioning to the outfield.

On April 16, Mancini recorded his second multi-home run game of the season, while driving in four runs.

He tied Trevor Story and Dino Restelli for most home runs through a player's first 12 career games with seven.

On April 22, Mancini hit his fifth home run of the season and eighth of his career.

He tied Story and Carlos Delgado for most home runs through a player's first 17 career games.

On June 7, in a game against the Pirates, Mancini hit a game-tying, pinch-hit two-run home run in the ninth inning off closer Tony Watson.

Two innings later, with two on and two outs, Mancini hit a walk-off three-run home run off Wade LeBlanc to give the Orioles a 9–6 victory.

Per STATS LLC, Mancini became the first Oriole to hit a pinch-hit homer in the 9th inning or later and then hit another home run in the same game.

Mancini was diagnosed with colon cancer in early 2020, consequently missing the entire shortened season.

Upon his recovery, Mancini returned to baseball in 2021 and was subsequently awarded the AL Comeback Player of the Year.

In 2022, he was traded midseason to the Astros, with whom he won the 2022 World Series.

Mancini attended Winter Haven High School in Winter Haven, Florida, where he batted .480 with six home runs as a senior.

After high school, he attended the University of Notre Dame, where he played college baseball for the Notre Dame Fighting Irish and pursued a degree in political science.