On Friday, heralded Oakland A's prospect Michael Ynoa, who was signed last year to a record $4.25 million bonus, will pitch in a game for the first time in almost seven months when he makes his debut for Oakland's instructional league team in the Dominican Republic. Ynoa, 17, who missed the entire 2009 season with elbow problems, threw a pain free, eight-batter, 25-pitch simulated batting practice session last week in front of A's general manager Billy Beane and assistant GM David Forst in the Dominican. "He looked great and pitched free and easy and pain-free," Forst said. "It's an excellent first step for him." During that session, Ynoa was throwing in the 90-91 mph range, which may raise some concerns considering that Ynoa's ability to throw in the mid-90s was what got him the record bonus as a 16-year-old signed out of the Dominican. But Forst said that Ynoa was only throwing at 80-85 percent effort.