Last week, Yahoo Sports reported that a federal grand jury had issued subpoenas "to club officials and other personnel." Most notably, Yahoo's sources said investigators are looking into the signing of outfielder Hector Olivera in 2015. Olivera, who is from Cuba, agreed to a $62.5 million contract with the Dodgers, who later traded him to the Braves. Subpoenas have already been issued to "at least one former Atlanta Braves official" and "multiple witnesses have agreed to cooperate with the investigation," according to Yahoo.