Tatis was initially signed as an international free agent by the Chicago White Sox in 2015 and later dealt to San Diego—alongside pitcher Erik Johnson—in exchange for James Shields. In the 2021 offseason, he solidified his future in San Diego by signing a 14-year, $340 million contract with the Padres, the richest in franchise history.

San Diego Padres superstar Fernando Tatis Jr. is suing Big League Advance Fund and owes the company millions of dollars.

San Diego Padres star Fernando Tatis Jr. has filed a lawsuit against Big League Advance (BLA), a company that offers players an upfront payment in exchange for a percentage of their future MLB earnings,