The Red Sox will use Xander Bogaerts strictly as a shortstop for now, according to the Boston Globe.
Bogaerts mostly saw time at third last year due to Stephen Drew being in town, but was brought up in the minors as a shortstop. With Drew currently a free-agent, the team wants to make sure Bogaerts gets as many reps at short as possible. While he still could see time at third, the team doesn't want to overload him by giving him reps at other positions.
Bogaerts hit .250/.320/.364 in 44 at-bats last season.