Worth noting from the Texas Rangers' minor-league system on Thursday:TRIPLE-A ROUND ROCK (55-68): Strike-throwing RHP Adrian Sampson worked 5 2/3 scoreless innings in a 3-2 win at Nashville (Oakland). Sampson is 2-1 with a 2.48 ERA in his last 10 starts. He has allowed five walks in 61 2/3 innings in that span.DOUBLE-A FRISCO (28-25, 52-71): RHP Jonathan Hernandez allowed two runs in six innings for a no-decision in a 7-5 loss to Arkansas (Seattle).