Masahiro Tanaka threw his first bullpen session under the watch of the New York Yankees on Thursday.

Tanaka agreed to a seven-year, $155 million deal with the Yankees last month.

The Japanese right-hander breezed through a 25-pitch bullpen session to catcher Francisco Cervelli at New York's minor league complex.

"The fastball travels so well. I think his mechanics are so smooth," Cervelli said. "Japanese pitchers, they all got five, six pitches. So it's fun just to be behind the plate and catch it."