Top outfield prospect Ronald Acuna is set to join the Atlanta Braves. The Braves planned to promote the 20-year-old from Triple-A Gwinnett on Wednesday to join them in Cincinnati. Acuna is ranked No. 1 on ESPN Insider Keith Law's top 100 prospects list. He also began this season as MLB.com's No. 2 overall prospect, behind Los Angeles Angels two-way sensation Shohei Ohtani. Acuna rose from Class A to Triple-A in 2017, hitting a combined .325 with 21 home runs, 82 RBIs and 44 stolen bases. Then he was named MVP of the Arizona Fall League.