Athletics prospect right-hander Michael Ynoa (elbow) threw a bullpen session Monday in the Dominican Republic.
Ynoa, now 20 years old, hasn’t pitched in a professional game since undergoing Tommy John surgery in August of 2010. However, if he can make it through another bullpen session Friday, he could be cleared to make an appearance in the Dominican Instructional League. “He is free and easy with no problems,” said Athletics’ director of player development Keith Lieppman. “So far, so good.” Barring any setbacks, he is expected to begin the 2012 season at extended spring training before being sent to Class A Vermont. Ynoa has been a major disappointment since receiving a record-setting $4.25 million signing bonus as a 16-year-old in 2008, but the good news is that he still has youth on his side.