The Red Sox have one of the deepest farm systems in baseball, and top prospects Marcelo Mayer and Roman Anthony haven't been able to come up yet because there's simply no place fo

It isn't a matter of if, but of when, for the Boston Red Sox to call up Marcelo Mayer and Roman Anthony. Whether Mayer or Anthony is the better player depends on who you ask. However, while that doesn't have to be an argument,

As an outfielder, Anthony faces a logjam for everyday playing time as Jarren Duran, Ceddanne Rafaela, Wilyer Abreau and Rob Refsnyder split time, with Masataka Yoshida hoping to return soon from an injury. And at a shortstop, Mayer would have to compete with highly paid veteran Trevor Story for playing time.