The Arizona Fall League begins in early October and this year's rosters are packed with excellent prospects who have a chance to become outstanding big leaguers. Similar to past years, the pitching ranks are quite thin, but there are several position players worthy of acclaim. Rob Gordon and Jeremy Deloney analyzed the rosters and provided their assessments on some of the top pitchers, players, and sleepers.

Call-ups for September 12, 2012: Hoes and Mesa.

With the 2012 minor league season winding down, it's a good time to re-assess. Every year, multiple media outlets spend time and energy compiling a list of players they deem to be the next impact players in the big leagues. Here at BaseballHQ.com, our 2012 Top 100 Prospects list was published on January 20. And every year, players rise and fall from these rankings as the season goes on.

Call-ups for September 6, 2012: Rodriguez.

Call-ups for August 30, 2012: Cloyd.

Call-ups for August 23, 2012: Werner and McHugh.

The beginning of September is historically an exciting time. Kids are headed back to school and football season is starting. For baseball fans, September 1 is the time for roster expansion.

Call-ups for August 16, 2012: Florimon.

Call-ups for August 8, 2012: Barnes.

Call-ups for July 25, 2012: Matt Harvey.

Call-ups for July 18, 2012: Gose, Verdugo, Fife, Brown, and Hernandez.