Only 5.
He has the ability to platoon, meaning he can hit LHP. But Cora is clearly reluctant to use him that way outside of giving Yoshida some time off. And it makes sense. If Wong DHd and Jansen got hurt, the Sox would have to have the pitcher bat.
If Abreu and Smith and now Sogard are all already platooning, the Sox don’t have a viable option for a regular platoon at DH as well. Now if they start using Abreu (or Anthony) full time against LHP, that situation changes. With 4 bench spots, 4 platoons necessitate using the starting catcher every game in some capacity. And that’s really not a good plan. And Cora knows this…