Ryota Igarashi didn't throw any pitches in the bullpen on the 17th. He instead spent his time running and taking fielding practice. Hisanori Takahashi took the day off.
Junichi Tazawa doesn't have an interpreter, or any staff that provides him with support. The Red Sox apparently wanted him to mature in an environment (the minors) where he was treated the same as every other player.
To that end, Tazawa has been taking English lessons via online classes and has even participated in a home stay program. But he still has trouble hearing what's being said at meetings and often relies on his teammates to help push him in the right direction.
Kazuo Matsui took off for the States from Narita airport on Thursday.