Jeison Manuel Rosario Bastardo (born 7 April 1995) is a Dominican professional boxer who held the unified WBA (Super) and IBF light middleweight titles in 2020.
Rosario compiled a record of 19–1–1 before facing and defeating Julian Williams to win the WBA (Super), IBF, and IBO light middleweight titles.
[1] In his next bout, Rosario faced Jermell Charlo for the WBC and vacant The Ring super welterweight championship.
[2] In his next fight, Rosario faced Erickson Lubin, who was ranked #1 by the WBC and #6 by The Ring at super welterweight.
[4] Rosario is scheduled to face Jesus Ramos in a 10-round super welterweight bout at T-Mobile Arena in Las Vegas on February 1, 2025.