Largest MLB contracts signed before big-league debut: Jackson Chourio surpasses Luis Robert for No. 1 spot | CBS Sports Headlines Largest MLB contracts signed before big-league debut: Jackson Chourio surpasses Luis Robert for No. 1 spot The Brewers outfield prospect is set to sign an extension worth close to $80 … Continue reading Largest MLB contracts signed before big-league debut: Jackson Chourio surpasses Luis Robert for No. 1 spot