Naoki Sakai (酒井 直樹, Sakai Naoki, born August 2, 1975) is a former Japanese football player.
He joined his local club Kashiwa Reysol from youth team in 1994.
From 2000, his opportunity to play decreased behind Mitsuteru Watanabe.
On October 13, 1996, Sakai debuted for Japan national team against Tunisia.
[1] [1] This biographical article related to a Japanese association football midfielder born in the 1970s is a stub.