Los Angeles Dodgers right-hander Yoshinobu Yamamoto’s much-awaited MLB debut on Thursday morning against the San Diego Padres in Seoul, South Korea, did not go as planned. Rather, Yamamoto established a new franchise-low by surrendering five runs in an inning of work, the most of any Dodgers starter in their MLB debut, according to the research of Eric Stephen of SB Nation.

Yamamoto shelled in debut as Dodgers lose to Padres - The Japan Times

Yamamoto, 25, required 43 pitches to get through his inning of work. He surrendered four hits and a walk, and he also hit a batter. He did strike out a pair of batters, but he was replaced by Michael Grove to begin the second inning.

Yoshinobu Yamamoto lasts 1 inning in Dodgers debut, gives up 5 runs to  Padres | Wire | h-ponline.com

Yamamoto entered the contest widely considered to be the best pitcher in the world who had not appeared in an MLB game. He closed out his career in Japan’s Nippon Professional Baseball league by winning three consecutive Most Valuable Player and  Eiji Sawamura Awards (the NPB equivalent to MLB’s Cy Young Award). The Dodgers believed in his ability enough to sign him to a 12-year pact worth $325 million.

Yoshinobu Yamamoto shelled in Dodgers debut, gives up five runs in one  inning against Padres - CBSSports.com

CBS Sports ranked Yamamoto as the second-best free agent available this winter, trailing only new teammate and two-way superstar Shohei Ohtani. Here’s part of what we wrote at the time:

It should be noted that there are several differences between MLB and NPB, including the use of a pitch clock and a different ball, as well as a more clustered schedule that requires pitchers to throw more often.