Iribarren, 26, a second baseman by trade who can play a number of other positions and move to the outfield, has hit .185 with two RBIs in his brief time in the Majors. He hit .231 in 13 at-bats for the Brewers in 2009.
The left-handed-hitting Iribarren has received an invitation to Major League Spring Training.
Iribarren hit .275 with eight home runs and 70 RBIs in 128 games at Triple-A Oklahoma City last season and is batting .318 with two homers and 11 RBIs while playing for the Tigres de Aragua in the Venezuelan Winter League.
Thomas Harding is a reporter for MLB.com. Read his blog, Hardball in the Rockies, and follow him on Twitter @harding_at_mlb. This story was not subject to the approval of Major League Baseball or its clubs.