The Rangers’ open tryouts today have unearthed a number of interesting names, as Jeff Wilson of the Fort Worth Star-Telegram writes (Twitter links). Among those trying out today are three hurlers who’ve pitched in the Rangers’ system — Kameron Loe (who was a starter and reliever for the Rangers from 2004-2008 and pitched last season with the White Sox’ Triple-A affiliate), Mark Hamburger (who made five relief appearances with the 2011 Rangers) and Blake Beavan (who was the Rangers’ first-round pick in 2007 and who pitched parts of four seasons in the big leagues with the Mariners).