The Boston Red Sox have made a roster move that could signal a changing of the guard at shortstop. Trevor Story has been placed on the 10-day injured list, and in a corresponding move, the team has called up infielder Nick Sogard from Triple-A Worcester.

If you're surprised to hear that Story is hurt, you're not alone. According to Chris Cotillo, the veteran shortstop has been battling a groin issue since late April. While the injury is likely minor, the timing is interesting. Story has struggled mightily at the plate this season, ranking among the worst hitters in baseball. This has led many to wonder if this is a "phantom IL" stint—a way to give the team some flexibility while Story works through his struggles. Will MLB investigate? Probably not, especially with more pressing matters like Aroldis Chapman's questionable hat from last night's game.

For the Red Sox, this move opens up a crucial question: who will man shortstop while Story is out? Sogard has been tearing it up in Triple-A, and now he gets his shot to prove he can do it at the highest level. But the bigger story might be whether the team decides to accelerate the timeline for top prospect Marcelo Mayer. With Story clearly not the long-term answer at shortstop, could this be the start of the Mayer era in Boston? Or will Andruw Monasterio hold down the fort for the next week or two?

One thing is certain: the Red Sox infield is about to get a lot more interesting. Keep an eye on Sogard's debut and the ripple effects this move could have on the team's future plans.