Seth Johnson Undergoes Knee Surgery

Athletics right-hander Seth Johnson has undergone left knee surgery, reports Martín Gallegos of MLB.com. The righty is expected to be recovered in time to be healthy for next year’s spring training.
Johnson, 28, was just acquired a few months ago. At the trade deadline in early August, the A’s sent outfielder Colby Thomas to the Phillies to acquire Johnson in a one-for-one swap. Johnson has intrigued a few teams with his arsenal but hasn’t been able to post strong result