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The right-hander was ranked as the 17th best prospect in baseball by one outlet this spring<p>The Astros have lost two straight, but still easily have the best record in baseball at 42-18. They’re also bringing up some pitching help, per the Houston Chronicle:<p>Francis Martes is a 21-year-old …

Read more at CBS Sports: http://www.cbssports.com/mlb/news/report-the-astros-are-calling-up-top-pitching-prospect-francis-martes/