While it is clear that Yamamoto has some very filthy stuff, he finished Spring Training with a 8.38 ERA. In 9.2 IP, he allowed 15 Hits and 9 ER. He walked 4 and struck out 14. It also has been rumored that he is tipping pitches. I heard someone say, “It doesn’t matter if he ‘s tipping pitches – they still can’t hit him!” YES THEY CAN! Now, understand that he has only thrown 89 pitches in Spring Training Games, so this is a small sampling. It is also very obvious that he has excellent control and some pitches that are very, very good.