Tigers shortstop prospect Cale Iorg has not played for High-A Lakeland since injuring his shoulder on Thursday. Detroit is awaiting test results on the right shoulder of its second-ranked prospect according to Baseball America.  

Rays prospects right-hander Wade Davis and catcher John Jaso will be promoted on Monday to Triple-A Durham from Double-A Montgomery. The promotion of Tampa Bay's fourth and 13th-ranked prospects by Baseball America will follow the Southern League All-Star Game on Monday.

Diamondbacks right-hander prospect Max Scherzer will throw two or three bullpen sessions following the Pacific Coast League All-Star break before returning from the disabled list. Arizona's fourth-ranked prospect by Baseball America hasn't pitched for Triple-A Tucson since June 15.

Ranger right-hander prospect Michael Main was promoted to Low-A Clinton from the Arizona League. Texas' sixth-ranked prospect by Baseball America evokes comparisons to Bret Saberhagen for his slight-build, plus-plus arm strength, intelligences, and determination.

The Astros' first-round draft pick catcher Jason Castro signed a contract with a $2 million bonus and was assigned to short season Low-A Tri-Cities. The tenth overall pick in June's First-Year Player Draft starred at Stanford and in the Cape Cod League before going pro.

The Tiger's first-round draft pick right-hander Ryan Perry signed a contract with a $1.48 million bonus and was assigned to the Gulf Coast League. The 21st pick in June’s First-Year Player Draft threw a 95 to 96 mile per hour fastball while at the University of Arizona.