Oakland Athletics acquire Tommy La Stella, trade Franklin Barreto to Los Angeles Angels.
Oakland Get a Playoff Shot at the Astros - The New York Times
Franklin Barreto - Wikipedia
Angels Trade Deadline: Grading each of the Halos deals
A's Acquire Tommy La Stella From Angels In Exchange For Franklin
Breaking down the trades: What do A's get from Minor and La Stella?
Athletics' La Stella leaves must-win Game 3 after HBP on elbow