Worth noting from the Texas Rangers' minor-league system on Thursday:TRIPLE-A ROUND ROCK (4-11): Gave up two outs on the bases in a 2-1 loss to Oklahoma City (Los Angeles Dodgers). LF Willie Calhoun had his second homer of the season and has hit in 11 of his last 12 games.DOUBLE-A FRISCO (3-9): Went 1 for 11 with runners in scoring position during a 5-3 loss at Corpus Christi (Houston).