Frank Lampard suffered his first defeat as Chelsea manager as the Blues fell to a 1-0 pre-season loss against Kawasaki Frontale at the Nissan Stadium in Yokohama, Japan, on Friday.
Following a goalless first half, Leandro Damiao struck late in the second to earn the hosts a surprise win.
The Blues had looked the more dangerous throughout the match, but a late flurry from Kawasaki culminated in Damiao heading the winner in the 86th minute.
Chelsea's preparations for the 2019-20 season continue on Tuesday with a clash against Spanish champions Barcelona.
This article will be updated to provide more information soon.