Jonathon David Berti was born on January 22, 1990, he is an American professional baseball utility player for the Miami Marlins of Major League Baseball (MLB). He has previously played for the Toronto Blue Jays.
The Toronto Blue Jays selected Berti in the 18th round, with the 559th overall selection, of the 2011 Major League Baseball draft. With the Vancouver Canadians of the Short Season-A Northwest League, he had 23 stolen bases and hit .291 with 21 RBI.
In 2012, he played for the Lansing Lugnuts of the Class A Midwest League and the Dunedin Blue Jays of the Advanced-A Florida State League (FSL). In 110 combined games, Berti hit .241 with 2 home runs, 40 RBI, and 34 stolen bases. In 2013, Berti played for Dunedin and stole 56 bases, the most in the FSL.
On April 20, his contract was selected, and he was called up to the major league roster. In 2019, Berti hit .273 with 6 home runs and led the Marlins with 17 stolen bases in 73 games.
He also demonstrated his defensive versatility as a rookie with 20 games played as a third baseman, 21 games as a center fielder, and 32 games as a shortstop. Berti became the first player in Marlins history with 20-plus games at each of those positions in the same season.
Berti stole second base, third base, and home in the sixth inning of a Marlins’ game against the New York Mets in August 2020, becoming the first Miami player to steal three bases in an inning. On the season, Berti slashed .258/.388/.350 with 2 home runs and 14 RBI in 120 at-bats.
In 2021, he had the fastest sprint speed of all major league third basemen, at 29.9 feet/second. On March 22, 2022, Berti signed a $1.2 million contract with the Marlins, avoiding salary arbitration
Berti has never divulged any information about his parents, he is a very private person who likes to keep his personal life away from media attention.