The Dodgers, who are in the maximum penalty and will not be able to sign pool-eligible international prospects during the next two periods, having exceeding their bonus pools by more than 15 percent, did not confirm the deal.
Alvarez, a 6-foot-4, 210-pound outfielder, will turn 19 on June 27. He's known as an athletic contact hitter who has shown some power. He hit .279 with a .342 on-base percentage and slugged .327 in two seasons for Las Tunas in Cuba's Serie Nacional. He can also play first base.
During the last year, the Dodgers have signed several top prospects, including pitcher Yadier Alvarez, ranked No. 1 on MLB.com's Top 30 International Prospects list for 2015; outfielder Yusniel Diaz for $15.5 million, outfielder Starling Heredia, ranked No. 9, for $2.6 million; infielder Ronny Brito, ranked No. 24, for $2 million; outfielder Christopher Arias for $500,000 and shortstop Oneal Cruz for $950,000.
The Dodgers also signed right-handed pitcher Ramon Rosso, outfielder Carlos Rincon and shortstop Damaso Marte Jr. from the Dominican Republic; Venezuelan shortstop Luis Rodriguez and second baseman Aldo Espinoza from Nicaragua. Marte, the son of former Major League pitcher Damaso Marte, signed for a $300,000 bonus.
The club later inked Cuban infielder Omar Estevez for $6 million.
The Dodgers, who had an allotted bonus pool of $2,020,300 but reduced that number to $700,000 after trading away slots, will have to pay an estimated $45 million tax on the overage on the players they signed.
Teams will not be able to sign international prospects during the next two weeks until the 2016-2017 international signing period begins on July 2.
Jesse Sanchez is a national reporter for MLB.com based in Phoenix. Follow him on Twitter @JesseSanchezMLB and Facebook. This story was not subject to the approval of Major League Baseball or its clubs.