Call-ups from the minors for May 10, 2012: Guyer, Tolleson, and Van Slyke.

Call-ups from the minors for May 3, 2012: Middlebrooks and Kratz.

Call-ups from the minors for April 26, 2012: Miller and Hottovy.

Call-ups from the minors for April 19, 2012: Pollock and Tazawa.

Call-ups from the minors for April 12, 2012

Call-ups from the minors for April 9, 2012

Call-ups from the minors for April 8, 2012

This is the last installment of our annual review of the top prospects in baseball by position. With the regular season starting, some of the players listed below have won jobs in the big league bullpen while others are on the cusp waiting for their opportunity. Unlike other positions, there aren't many top relief pitching prospects in the lower minors.

Call-ups from the minors for April 7, 2012

Much of the prospect discussion in spring training has revolved around future stars such as Bryce Harper, Mike Trout, and Matt Moore. There has also been plenty of focus on international talents. While Yoenis Cespedes and Gerardo Concepcion have signed with major league organizations, Jorge Soler is waiting to be granted free agency by Major League Baseball. These three international prospects are profiled here with full scouting reports and a prognosis for future success.

This week we continue our annual review of the top prospects in baseball by position, this time with top OF prospects. From a depth standpoint, this year's crop of outfielders seems a bit on the light side. This is overshadowed by the presence of the two potential behemoths at the top of the list: Bryce Harper and Mike Trout.