Melvin Gregorio Rosario (born May 25, 1973) is a former Major League Baseball player. Rosario played for the Baltimore Orioles in the 1997 season. In four games, he had no hits in 3 at-bats, with one error at catcher. Rosario was a switch hitter and threw right-handed.
Career
He was signed by the San Diego Padres as an amateur free agent in 1991. He last played professionally in 2006 for the Atlantic City Surf of the Atlantic League.