Kodai Senga's condition was an open question coming into the Tokyo Olympics. Whether he would even compete was in doubt after he suffered a severe ankle injury during a game against the Hokkaido Nippon Ham Fighters on April 6.
Senga was not even on the initial Samurai Japan roster, only being added later after other players dropped out with injuries. He's only pitched 8⅓ innings for the Fukuoka SoftBank Hawks this season and he allowed 10 runs in the most recent 2⅔ of those.
So while Senga's return to Samurai Japan didn't have the same fanfare that greeted starter Masahiro Tanaka on Monday, it was no less impactful.