The top prospect in Cuba is one step closer to fulfilling his big league dream.

Outfielder Luis Robert, 19, was declared a free agent by Major League Baseball on Thursday, according to a source. He will be eligible to sign with a big league club on May 20.

Widely considered the second-best international prospect behind Japanese dual phenom Shohei Ohtani, the 6-foot-3, 205-pound outfielder is a five-tool player who scouts think can reach the big leagues quickly. Robert takes over the No. 1 spot on MLB Pipeline's Top 30 International Prospects list, which ranks the top players available during the current signing period.

Robert hit .393 with 12 home runs and 11 stolen bases in Cuba's Serie Nacional, the island's top league, last season. The right-handed hitter, who profiles as a center fielder with plus power and speed, was described by one American League international scouting director as "the best player on the planet."