Other than Marcelo Mayer shifting in as starting second baseman and a few spots on the bench and in the bullpen, the roster has been largely cemented since Caleb Durbin came in.

Is Marcelo Mayer's spot on the Boston Red Sox's opening day roster truly in jeopardy, or was manager Alex Cora's message last week more of a symbolic wake-up call? Last week, Cora said Mayer had "a ...