Machado, 20, has batted .266/.352/.438 with 11 home runs and 59 RBI in 109 games with the Baysox this season, including a .275/.365/.505 line in 91 at-bats since the All-Star break.
Machado came into 2012 rated as the #2 prospect in the Orioles organization and the #11 prospect overall by Baseball America. He played in the MLB Futures Game in Kansas City in July, going 1-for-3 with a double, two RBI and a run scored. Machado was a 2011 South Atlantic League All-Star.
This is a surprise move that nobody saw coming with the team in the thick of the A.L. playoff chase, but it says a lot about what the Orioles think about this kid.