Nunez, 26, owns a career slash line of .267/.313/.379 (87 OPS+) across parts of three big-league seasons. He's also capable of playing shortstop, second and third. The Twins announced that Nunez will be assigned to Triple-A Rochester.
As for Sulbaran, the 20-year-old Venezuelan owns a career minor-league ERA of 3.15 and a K/BB ratio of 3.48 in 55 games, 45 of which have been starts. He spent all of last season in the Low-A Midwest League.