With spring training in full swing, there is a chance for fans to not only see the returning, new and expected members of a major league roster, but also to get a look at their team's best prospects.
Most of these players are pretty well known by die-hard and regular fans. However, there are also players who have to make an impact that fans simply don't know that much about. Many are non-roster invites, but there are some minor league players who were not as heralded but have played themselves into prospect status.
In the case of the Oakland A's, there's the highly regarded Grant Green, Sonny Gray, Michael Choice and the electric Addison Russell. But the A's have had many players rise through their ranks without much notoriety and make an impact. Dan Straily's march to the major league in 2012 is a prime example.
So, in the spirit of spring training, here are some of the best prospects you haven't heard of yet for the Oakland A's.