Rangers DFA Mark Hamburger
The Rangers have designated RHP Mark Hamburger for assignment to make room for RHP Roy Oswalt on the 40 man roster. Texas has 10 days to trade or release Mark Hamburger who was acquired from the Minnesota Twins in 2008 in a trade for reliever Eddie Guardado.
Mark Hamburger made a brief appearance with the Rangers in 2011, pitching 8 innings, giving up 5 hits, 4 earned runs and striking out 6. He’s been at AAA Round Rock this season: 45 IP, 66 Hits, 33 ER, 21 BB, 37 K – 6.55 ERA.