Worth noting from the Texas Rangers' minor-league system on Monday:TRIPLE-A ROUND ROCK (18-27): Went 1 for 9 with runners in scoring position during a 6-5 loss to Iowa (Chicago Cubs). LHP Yohander Mendez allowed five runs in 4 1/3 innings and threw 88 pitches. That rules him out as starter for the Rangers on Wednesday.Mendez is 0-4 with a 6.00 ERA in the Pacific Coast League for the season.DOUBLE-A FRISCO (14-30): Got a homer and five RBIs from SS Michael De Leon in a 7-3 win against Corpus Christi (Houston).