Athletics Designate Chen Zhong-Ao Zhuang For Assignment

The Athletics announced that they have selected the contract of infielder Jonathan Ornelas, a move that MLBTR covered earlier. To open an active roster spot, outfielder Colby Thomas has been optioned to Triple-A Las Vegas. In a corresponding 40-man move, right-hander Chen Zhong-Ao Zhuang has been designated for assignment.
More to come.