Trey Mancini is a professional baseball player from the United States of America. He plays in Major League Baseball (MLB) for the Baltimore Orioles. He was drafted into the MLB during the 2015 Amateur Draft. He later made his MLB debut in 2016. In 2021, he was named the AL Comeback Player of the Year.

Player Profile

Mancini’s full name is Joseph Anthony Mancini. He was born on March 18, 1992. When he joined the MLB, he was nicknamed “Boom-Boom” after boxer Ray Mancini. This has now morphed into his present nickname, “Boomer”. He stands 190 cm and his last listed weight is 104 kilograms.

He is a right-handed player and he bats and throws with his right. He holds the position of outfielder and first baseman.

Team Baltimore Orioles Baltimore Orioles
Position First Base
Height / weight 1.9 m / 104 kg
Born 18 Mar 1992
Nationality United States United States
Nickname Boomer
Team History
Baltimore Orioles Baltimore Orioles 2021 - present
Baltimore Orioles Baltimore Orioles 2016 - 2019


He was born in Florida and he attended and play baseball for Winter Haven High School. He had a batting average of 0.480. He then went on to play baseball for the University of Notre Dame and pursued a degree in Political Science.

While in college, he played for the Holyoke Blue Sox and the Harwich Mariners. He was drafted into the MLB by the Baltimore Orioles in the 2013 MLB Draft. He debuted as a professional player in the Minor Leagues with the Aberdeen IronBirds. He then moved on to play for the Delmarva Shorebirds and later on the Bowie Baysox.

He was promoted to play in the major leagues in September 2016 and he made his debut in a game against the Boston Red Sox. He hit a home run in his first three starts, making him the third player in MLB history to do so.

In 2017, he was made a part of the Orioles opening roster. He ended that season with a batting average of .293/.338/.488. He played in 147 games and had 78 home runs. In 2018, he had a batting average of 0.242 and he had a batting average of 0.291 the following year.

He left the Orioles in 2020 when he had to remove a malignant tumor from his colon. It was later revealed that he was diagnosed with Stage 3 colon cancer. He missed playing the entire 2020 season.

In November 2020, it was announced that he was cancer-free and that he had signed to play for the Orioles again in the upcoming 2021 season. He ended 2021, batting .255/.326/.432. He was also named the AL Comeback Player of the Year.

Career Highlights

  • 2021 – AL Comeback Player of the Year Award

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