The deal is worth a reported $300 million over 10 years, making it the biggest free-agent contract in American sports. (New York Yankees outfielder Giancarlo Stanton's previous $325 million deal with the Miami Marlins was a contract extension.) Machado's contract also contains an opt-out clause after Year 5.
The San Diego Padres have yet to confirm the deal.
Machado was considered the prize of free agency alongside star outfielder Bryce Harper. The expectation is that Harper is looking to top Machado's deal, and there is momentum for Harper to sign with the Philadelphia Phillies, though the Phillies front office was reported to prefer Machado.
The Chicago White Sox had left no stone unturned in their pursuit of Machado. They acquired first baseman Yonder Alonso -- Machado's brother-in-law -- from the Indians on Dec. 15, and on Jan. 7, they reached an agreement to sign outfielder Jon Jay, one of Machado's good friends. The three players, with shared roots in the Miami area, often train together in the offseason.
The New York Yankees, who also courted Machado, reportedly never made a formal offer for the superstar infielder.
Machado, 26, is a four-time All-Star who has career marks of a .282 batting average, .335 on-base percentage, .487 slugging percentage and .822 OPS.
Machado hit .297 with 37 home runs and 107 RBIs last season -- all career-best marks -- while playing for the Baltimore Orioles and the Los Angeles Dodgers. He played 147 games at shortstop last season, though he primarily played third base in the first five full seasons of his career. Machado won a Gold Glove at third base in 2013 and 2015.
Machado, however, does come with baggage.
After questionable effort in his attempt to run to first base on a groundball during Game 2 of the NLCS this past season, Machado made headlines when he told Ken Rosenthal of The Athletic that while there was no excuse for not sprinting to first base, he would never be a “Johnny Hustle” because that wasn’t “his cup of tea."