Chelsea have made an offer for Japanese midfielder Yoshinori Muto, according to FC Tokyo's president.
Reports in Japan have suggested that the Premier League leaders are interested in a £4m deal for the 22-year-old, but Naoki Ogane refused to confirm whether an agreement was in place.
"It is true that Chelsea sent us an offer for Muto," Ogane told Sports Nippon. "It is a formal offer with conditions. They want to acquire him in the summer"
Muto has made 10 appearances for Japan, scoring once.