Roberto Rivera DÃÂaz (born January 1, 1969) is a former Major League Baseball player. He made his MLB debut with the Chicago Cubs in . He last played in the majors for the San Diego Padres in .
Rivera played 7 games for the Chicago Cubs in 1995 where he had an ERA of 5.40. While in 1999 he played 12 games of the San Diego Padres where he finished with an ERA of 3.86.https://www.baseball-almanac.com/players/player.php?p=riverro01