White Sox acquired RHP Michael Ynoa and RHP Jeff Samardzija from the Athletics for INF Marcus Semien, RHP Chris Bassitt, 1B Rangel Ravelo, and C Josh Phegley.
Athletics pitching prospect Michael Ynoa (biceps) will be activated from High-A Stockton's disabled list on Tuesday.
Athletics right-handed pitching prospect Michael Ynoa left Friday night's game with an apparent injury.
The Athletics have moved pitching prospect Michael Ynoa to the bullpen at High-A Stockton.
Athletics optioned RHP Michael Ynoa to High-A Stockton.
Athletics optioned RHP Michael Ynoa to Low-A Beloit.
Athletics prospect right-hander Michael Ynoa has arrived in camp.
Athletics prospect right-hander Michael Ynoa hasn't reported to camp due to chicken pox.
Athletics purchased the contract of RHP Michael Ynoa from Low-A Vermont.
Athletics prospect right-hander Michael Ynoa (elbow) threw a bullpen session Monday in the Dominican Republic.
Michael Ynoa (elbow surgery) is expected to begin throwing off a mound in July.
A's pitching prospect Michael Ynoa underwent Tommy John reconstructive elbow surgery on Tuesday.
Michael Ynoa, who signed a $4.25 million deal with the A's as a 16-year-old in 2008, is expected to undergo Tommy John surgery on Aug. 24.
A's pitching prospect Michael Inoa (elbow) might be cleared to begin a throwing program later this week.