The Red Sox are calling up heralded infield prospect Marcelo Mayer from Triple A Worcester. WooSox manager Chad Tracy told reporters in Worcester on Saturday that he’d delivered the news to the 22-year-old, whom Baseball America recently ranked as the game’s No. 9 prospect, before the team’s doubleheader at Polar Park.

Marcelo Mayer lived out a childhood dream Saturday afternoon when the Triple-A Worcester player was promoted to the Boston Red Sox.

Marcelo Mayer will join the Boston Red Sox Saturday. The team’s top shortstop prospect was seen receiving congratulations in the Worcester Red Sox clubhouse ahead of the team’s first game of a doubleheader.