Athletics acquired OF Junior Perez from the Padres to complete the Jorge Mateo trade.
The Padres picked up Mateo at the end of June; shortly after transactions were unfroze. Perez, 19, has yet to play in full-season baseball, and has a .253/.321/.392 line with 14 homers and 23 steals over 112 minor league games. He is considered a high-upside prospect, however, and has a chance to to develop into a starting outfielder in time.