Tsuyoshi Ishizaki

is a Japanese Nippon Professional Baseball former player.

Early baseball career A native of Ibaraki, Ishizaki started playing baseball in grade school and continued until he entered Sanwa High School. His school made it to the 3rd round of the prefectural tournament, but failed to make it to Koshien. During that time, his fastballs already sparked the interest of some scouts as they reached the 145 km/h levels. However, in the end, none of the 12 NPB teams drafted him when he graduated from high school.

Wanting to pursue a career in baseball, he joined the industrial leagues under Shin Nittetsu Sumikin Kashima. However, he began experiencing lower back pain shortly after he joined the team. Apparently, this was brought about by the strain that resulted from his overhead pitching form. As a solution, he decided to alter his delivery form to a lower arm angle. He was assigned the jersey number 30.

His teammate from Shin Nittetsu, Yuya Yokoyama was the Tigers' first pick during the same draft,

2015

He debuted as a reliever during the March 29 opening card with the Dragons in Kyocera Dome, where he retired 3 consecutive batters in the 8th inning, helping the Tigers sweep their opponent in their first 3 games for the season.

Chiba Lotte Marines On July 4, 2019, Ishizaki was traded to the Chiba Lotte Marines in exchange for Keisuke Takano.

Playing Style With a three-quarter right-handed side throw,