Duran will become Boston's fourth outfielder after the team activated Enrique Hernandez from the injured list Tuesday, Chris Cotillo of MassLive.com reports.
Duran, who's had a rocky road the last two months as the primary center fielder, will become a spare outfielder instead of being sent down to the minors where he could play every day and develop. He started in center Tuesday while Hernandez gave Xander Bogaerts a break at shortstop.