"That's why he's out there right now," said manager John Farrell. "I know he played there a couple of times last year, but he's improved tremendously in left field. But given the potential makeup of our bench and our extra outfield situation, the ability to go to right field would be key in his situation -- not to say his roster status hinges on that, but we want to take a look at it."
Nava is in competition for a roster spot with Lyle Overbay, Mike Carp and Ryan Sweeney. Two of those four players could get spots on Boston's bench.
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.