Sasaki was born in Chiba Prefecture on June 19, 1962. After graduating from Kokushikan University, he joined Japan Soccer League club Honda in 1985. He played 121 matches und scored 10 goals for the club. He moved to All Nippon Airways in 1991. He also played at his local club JEF United Ichihara (1992–93) and Kashiwa Reysol (1994). He retired in 1994.