Worth noting from the Texas Rangers' minor-league system on Wednesday:TRIPLE-A ROUND ROCK (36-42): Extended its winning streak to six games with a 6-4 victory against Omaha (Kansas City). 1B Tommy Joseph had two hits, including a three-run homer.DOUBLE-A FRISCO (3-3, 27-49): Had a scheduled off day. Frisco has the highest team ERA in the Texas League at 5.07.HIGH A DOWN EAST (3-4, 38-39): Went 5 for 12 with runners in scoring position during a 7-5 win against Potomac (Washington).