Lotte outfielder Koki Yamaguchi (25) held a public training session at his home stadium, Zozo, on the 13th, where he worked on a range of exercises including sprints, batting practice, and knocking using mitt.

On August 21st of last year, in a game Rakuten Eagles (ZOZO), he hit Home Run, tying Pacific League, but for the season he was not at his best, with a batting average of .255, seven Home Run, and 24 RBI in 35 games.

Although he is registered outfielder, he intends to compete for the regular position at first base in his eighth year, and he informed the team of this during contract renewal negotiations in December of last year. "I think Soto's name is also being mentioned at first base, so I feel like I want to give it a go, and I think you should just wait and see. I think my position will be tougher than usual. I definitely think there will be fewer chances than before, so I'm determined to do it," he said, revealing his determination to face the wall.