Red Sox right-hander prospect Michael Bowden was placed on Double-A Portland's disabled list with a sore calf. Bowden reportedly is not injured and the move was done to the Sea Dogs could activate fellow starter Dustin Richardson.

The New Hampshire Union Leader reports Bowden, Boston's seventh-ranked prospect by Baseball America, will be promoted to Triple-A Pawtucket following the Eastern League All-Star Game on Wednesday.

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Red Sox left-hander prospect Dustin Richardson threw five innings, struck out four and gave up one run in his return from a disabled list stint with a sore left shoulder. Boston's 22nd-ranked prospect by Baseball America has 69 strikeouts in 65.6 innings with Double-A Portland.

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Braves left-hander prospect Chad Rodgers was placed on Low-A Rome's disabled list with a left shoulder strain. Atlanta’s 16th-ranked prospect by Baseball America has two wins and ten losses through 14 starts in the South Atlantic League.

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.  

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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.

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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.

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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.

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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.

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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.