According to Elias

Rookie Samuel Deduno earned the win for the Twins Saturday night by throwing seven innings and allowing only two hits. That performance came one game after fellow Twins rookie Scott Diamond earned a win by throwing nine innings and allowing only three hits. The last time a major-league team had rookies throw back-to-back games in which they both pitched at least seven innings and allowed no more than three hits was the Pirates in July 2000 (Jimmy Anderson and Bronson Arroyo). The last American League team to do it was the Rangers in a doubleheader on July 26, 1973 (Jim Bibby and David Clyde).