BOSTON -- Red Sox second baseman Trevor Story now knows why his right hand hadn¡¯t been recovering like he had hoped from the deep bruise he sustained on July 12 when he was hit by a pitch while in the middle of swinging.

A follow-up exam with a hand specialist on Friday revealed that Story has a hairline fracture in his right wrist. Boston manager Alex Cora said the fracture is in a different spot from where Story was hit by Tampa Bay¡¯s Corey Kluber.

Before the latest diagnosis, the club was holding out hope that Story could be back in a matter of days, perhaps at some point next week. Now, he won¡¯t swing a bat for at least 10 days, clouding the timeline of when he will be able to return to action.

¡°The bone bruise is [improved],¡± Cora said. ¡°They found, close to the wrist, a little hairline fracture. The treatment doesn¡¯t change. It¡¯s kind of like we treat it the same way we¡¯ve been doing. Basically like a sprain. But the only thing we have to do now is shut him down swinging-wise for probably a week and a half and see where we¡¯re at.

¡°It¡¯s something that it¡¯s not a surprise for us, because it¡¯s kind of like the same thing. The doctor feels like we keep doing what we¡¯re doing treatment-wise. It¡¯s just like we have to shut him down for 10 days, or whatever it is, from swinging, and then we¡¯ll see where we¡¯re at.¡±

Christian Arroyo returned from the injured list for the Red Sox on Saturday and will hold down most of the at-bats at second base until Story returns. Boston had been starting Jeter Downs, its No. 5 prospect per MLB Pipeline, and veteran defensive specialist Yolmer S¨¢nchez in recent weeks and hadn¡¯t been getting any results offensively.

At this point, the Red Sox can¡¯t even venture a guess as to when Story will be back in a lineup that has struggled to put runs on the board as of late.

¡°When he starts swinging or whatever, we¡¯ll see how he feels and we¡¯ll go from there,¡± Cora said. ¡°The other stuff, running and all that stuff, he¡¯ll keep doing. Just the swinging part of it, we were trying to get to where we wanted, and he wanted to do the same thing. It wasn¡¯t happening. Now, we just have to shut him down.¡±

The hairline fracture is the latest chapter in an up-and-down first season in Boston for Story, who signed a six-year, $140 million pact to join the club in March. In 81 games, Story is batting .221/.289/.423 with 15 homers and 58 RBIs. Defensively, he has been marvelous while transitioning from shortstop to second base.

Before Story was signed, Arroyo was projected to be the club¡¯s starting second baseman. Now that he¡¯s back from a left groin strain sustained on July 8, he will get that chance, at least for the time being.

¡°We trust [Arroyo],¡± Cora said. ¡°It¡¯s just a matter of keeping him on the field. We saw what he did in October last year, when he didn¡¯t play for a month. He¡¯s a good defender, obviously more comfortable in the infield than the outfield. His at-bats are good. Hopefully for now, [because] he¡¯s going to play every day, he doesn¡¯t try to do too much offensively. Just try to do your part, and that¡¯s all we need right now.¡±