http://nypost.com/2015/03/25/the-one-fastball-masahiro-tanaka-is-leery-of-throwing/
However, Tanaka did offer an explanation why we haven’t seen his fastball push speed guns into the mid-90s so far this spring training.
“The reason for the 88, 89, 90 [mph] is that I am throwing two-seamers,’’ Tanaka said of the fastball gripped to sink and not with the velocity of a four-seamer.
After saying his four-seamer got hit hard last season when he dominated hitters until suffering a small tear of the ulnar collateral ligament in July, Tanaka has used this spring to refine the two-seamer.
“The reason I am not throwing it much is because a lot of the four-seamers were hit last year,’’ Tanaka said. “I am doing this on purpose.’’
According to the Yankees’ analytical department, Tanaka’s velocity (89-to-92) Wednesday against the Mets, is in the same range as a year ago.