MLB.com "The Oakland A’s selected outfielder Luis Barrera from Triple-A Las Vegas and designated outfielder Billy McKinney for assignment, the club announced today. Barrera was hitting .286 with six doubles, a triple, three home runs and 10 RBI in 23 games with Triple-A Las..." May 09
MLB Trade Rumors "The Athletics announced their signing of outfielder Billy McKinney to a minor league pact. The deal includes an invitation to Major League Spring Training. It’s the third type of signing for Oakland today, after a waiver claim of Sheldon Neuse and..." March 17