MINNEAPOLIS - It is hardly surprising, but it is now at least a real thing.The Rangers, according to a major league source, are making Adrian Beltre available to contending teams interested in a third baseman. Also: The Rangers are making lefty Jake Diekman and closer Keone Kela available on the trade market, the source said.Before the trade deadline expires on July 31, the Rangers are likely to explore trades for many of their veterans.Philadelphia, which is reportedly "interested," in Beltre, had a scout in Minneapolis watching the Rangers the last two days.