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. filed a lawsuit on Monday against Big League Advance (BLA), attempting to void a contract he signed as a teenage minor-leaguer that states he owes the company a share of his future earnings.

BLA and similar companies have been accused of predatory tactics and locking young minor-leaguers, often Latin American players from poor backgrounds, into agreements they don't fully understand. Former major league catcher Francisco Mejía is among several others suing BLA.