Red Sox's Marcelo Mayer: On bench against lefty

Mayer is out of the lineup for Sunday's game against the Giants.

After starting in each of the last five games, the left-handed-hitting Mayer will head to the bench while the Red Sox stock up on extra right-handed bats to counter Giants southpaw Robbie Ray. Nate Eaton will cover third base in Mayer's stead.