Being at the winter meetings in Nashville allowed me to catch up with people I’d been seeing there since I first started going in 2014. With four Japanese pitchers moving to MLB this winter, there was a lot to talk about.

In the past, I’ve published injury and deactivation records of Japanese pitchers trying to play in MLB, but it has been a hectic offseason, and somehow I neglected that duty this year.

This brought a request from Eno Sarris of the Athletic::

“I’ve been furiously googling and going through your site and I can’t find anything on Yamamoto injuries — do you know off the top of your head what his major injuries were? Seems like he has a ton of innings every year except his first two?”

The answer to his injury history is that if there is one, it hasn’t been made public. The answer to his playing time requires an understanding of how NPB roster rules differ from those in MLB.

Yamamoto’s published injuries — as related to deactivations are listed below: