Tsutomu Wakamatsu (若松 勉, Wakamatsu Tsutomu; born April 17, 1947) is a Japanese former baseball player, coach, and manager for the Yakult Swallows in Nippon Professional Baseball. He batted left-handed, and threw right-handed. His number 1 is honoured by the Swallows.
Source: “Tsutomu Wakamatsu”, English Wikipedia (CC BY-SA 4.0), excerpt