The Boston Red Sox are calling up slugging first base prospect Triston Casas ahead of Sunday's series finale against the Texas Rangers.
Casas has hit .273/.382/.481 with 11 homers over 72 games at Triple-A this season. The 22-year-old is the second-best prospect in the Red Sox system behind former fourth overall pick Marcelo Mayer and ranks No. 26 in all of baseball