No, Daiju Sasaki is no longer an active football player. He ended his illustrious football career in 2015 at the age of 40. Sasaki's final professional football match was on 29 November 2015 for Vissel Kobe against Sanfrecce Hiroshima, where he came off the bench in the 79th minute.
Kicking It with Kunishige: Test Your Knowledge on Japanese Football Legend