The Premier League top six, who have already lost to Leeds and Southampton, saw Zagreb's winning goal as early as the 13th minute.
After a quick transition, Mislav Orcic chested the ball in his own half and raced free across the pitch, holding off the courting Wesley Fofana and with a cool right wing he played the ball past goalkeeper Kepa Arrizabalaga.
"We underperformed"
- We underperformed and it was the same story as usual.
We had an okay start but couldn't convert our half-chances.
When we then went on the transition it became tough and we had problems, Chelsea coach Thomas Tuchel told Uefa and elaborated for AP:
- We are missing everything at the moment.
Zagreb knocked out Tottenham in the 2020-21 season and today's performance was on par with that bang.
- It is one of the biggest wins in the club's history, just like the one against Tottenham last year and honestly, the team deserved the victory, writes Uefa's emissary from Stadion Maksimir.
In the 2020-21 season, Chelsea won the tournament.