Yoshinobu Yamamoto joins the Los Angeles Dodgers, vows to compete for championships alongside Ohtani

Yoshinobu Yamamoto smiles during his introduction as a new member of the Los Angeles Dodgers baseball team Wednesday, in Los Angeles. (AP Photo/Ashley Landis)

LOS ANGELES — Just over six years after Yoshinobu Yamamoto watched a playoff game from the raucous Dodger Stadium stands and decided he absolutely had to play in the major leagues one day, the right-hander pulled on his white No. 18 jersey and a blue cap in the center field pavilion.