Chelsea suffered a shock 1-0 defeat against Kawasaki Frontale in their pre-season tour in Japan on Friday.
Damiao scored in the 86th minute to give Kawasaki Frontale the victory against the Blues.
Michy Batshuayi went close to giving Chelsea the lead in their pre-season friendly in Yokohama.
Pedro had an effort saved after being set up by Jorginho shortly before Mason Mount linked up nicely with Batshuayi, who fired narrowly wide.
Pedro and Kenedy then sent efforts over the bar as Chelsea continued to dominate.
Chelsea: Caballero, Azpilicueta, Luiz, Zouma, Alonso, Kovacic, Jorginho, Mount, Kenedy, Pedro, Batshuayi.
Subs: Cumming, Zappacosta, Christensen, Emerson, Tomori, Drinkwater, Barkley, Pulisic, Palmer, Bakayoko, Giroud.
Up next for Chelsea is the clash against Barcelona on Tuesday.