Over the years, the Houston Astros have depleted their farm system with a number of different trades for players like Miguel Tejada and poor drafting. However, last year's trades of Roy Oswalt and Lance Berkman brought back some young players like Brett Wallace and J.A. Happ who already are contributing at the major league level.
The Houston Astros seem to have become focused on building up their farm system and have some intriguing prospects who should play a pivotal role in the Astros' success in the future. Here is a list of the top 10 prospects who are 20 years of age or younger in the Astros farm system.