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.

Fernando Tatis Jr. is suing Big League Advance in an attempt to void the future earnings contract he signed as a 17-year-old minor leaguer that could cost him about $34 million.